3902001156 has 81 divisors (see below), whose sum is σ = 10243770901. Its totient is φ = 1252318368.

The previous prime is 3902001151. The next prime is 3902001157. The reversal of 3902001156 is 6511002093.

The square root of 3902001156 is 62466.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2046114756 + 1855886400 = 45234^2 + 43080^2 .

It is a super-2 number, since 2×3902001156² = 30451226042850672672, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3902001151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10868905 + ... + 10869263.

Almost surely, 2^3902001156 is an apocalyptic number.

3902001156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

3902001156 is the 62466-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3902001156

3902001156 is an abundant number, since it is smaller than the sum of its proper divisors (6341769745).

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

3902001156 is a wasteful number, since it uses less digits than its factorization.

3902001156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The cubic root of 3902001156 is about 1574.3300963612.

The spelling of 3902001156 in words is "three billion, nine hundred two million, one thousand, one hundred fifty-six".