4527279540 has 252 divisors, whose sum is σ = 16584276996. Its totient is φ = 1034643456.

The previous prime is 4527279527. The next prime is 4527279541. The reversal of 4527279540 is 459727254.

4527279540 is a `hidden beast` number, since 4 + 527 + 2 + 79 + 54 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1605444624 + 2921834916 = 40068^2 + 54054^2 .

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×4527279540² = 40992520066605223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4527279541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 711252 + ... + 717588.

It is an arithmetic number, because the mean of its divisors is an integer number (65810623).

Almost surely, 2^4527279540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4527279540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8292138498).

4527279540 is an abundant number, since it is smaller than the sum of its proper divisors (12056997456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4527279540 is a wasteful number, since it uses less digits than its factorization.

4527279540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378 (or 6354 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 4527279540 is about 67285.0617893749. The cubic root of 4527279540 is about 1654.2930189558.

The spelling of 4527279540 in words is "four billion, five hundred twenty-seven million, two hundred seventy-nine thousand, five hundred forty".