4155298740 has 72 divisors (see below), whose sum is σ = 12649415688. Its totient is φ = 1104122880.

The previous prime is 4155298723. The next prime is 4155298753. The reversal of 4155298740 is 478925514.

4155298740 is a `hidden beast` number, since 4 + 1 + 5 + 529 + 87 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 245047716 + 3910251024 = 15654^2 + 62532^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9504 + ... + 91656.

It is an arithmetic number, because the mean of its divisors is an integer number (175686329).

Almost surely, 2^4155298740 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 4155298740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6324707844).

4155298740 is an abundant number, since it is smaller than the sum of its proper divisors (8494116948).

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

4155298740 is a wasteful number, since it uses less digits than its factorization.

4155298740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82449 (or 82444 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 4155298740 is about 64461.6067128333. The cubic root of 4155298740 is about 1607.6842264394.

The spelling of 4155298740 in words is "four billion, one hundred fifty-five million, two hundred ninety-eight thousand, seven hundred forty".