3992474256 has 160 divisors (see below), whose sum is σ = 11105955840. Its totient is φ = 1232174592.

The previous prime is 3992474231. The next prime is 3992474279. The reversal of 3992474256 is 6524742993.

3992474256 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3992474199 and 3992474208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13626046 + ... + 13626338.

It is an arithmetic number, because the mean of its divisors is an integer number (69412224).

Almost surely, 2^3992474256 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 3992474256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5552977920).

3992474256 is an abundant number, since it is smaller than the sum of its proper divisors (7113481584).

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

3992474256 is a wasteful number, since it uses less digits than its factorization.

3992474256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 607 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The square root of 3992474256 is about 63186.0289621052. The cubic root of 3992474256 is about 1586.4048958102.

The spelling of 3992474256 in words is "three billion, nine hundred ninety-two million, four hundred seventy-four thousand, two hundred fifty-six".