4820279440 has 20 divisors (see below), whose sum is σ = 11207149884. Its totient is φ = 1928111744.

The previous prime is 4820279437. The next prime is 4820279449. The reversal of 4820279440 is 449720284.

It can be written as a sum of positive squares in 2 ways, for example, as 1624412416 + 3195867024 = 40304^2 + 56532^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4820279393 and 4820279402.

It is not an unprimeable number, because it can be changed into a prime (4820279449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30126667 + ... + 30126826.

Almost surely, 2^4820279440 is an apocalyptic number.

4820279440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4820279440 is an abundant number, since it is smaller than the sum of its proper divisors (6386870444).

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

4820279440 is a wasteful number, since it uses less digits than its factorization.

4820279440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60253506 (or 60253500 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 4820279440 is about 69428.2322978196. The cubic root of 4820279440 is about 1689.2375959590.

The spelling of 4820279440 in words is "four billion, eight hundred twenty million, two hundred seventy-nine thousand, four hundred forty".