3992407536 has 80 divisors (see below), whose sum is σ = 11147099040. Its totient is φ = 1224007680.

The previous prime is 3992407519. The next prime is 3992407537. The reversal of 3992407536 is 6357042993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992407537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163960 + ... + 186728.

It is an arithmetic number, because the mean of its divisors is an integer number (139338738).

Almost surely, 2^3992407536 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 3992407536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5573549520).

3992407536 is an abundant number, since it is smaller than the sum of its proper divisors (7154691504).

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

3992407536 is a wasteful number, since it uses less digits than its factorization.

3992407536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23074 (or 23068 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 48.

The square root of 3992407536 is about 63185.5009950859. The cubic root of 3992407536 is about 1586.3960587234.

The spelling of 3992407536 in words is "three billion, nine hundred ninety-two million, four hundred seven thousand, five hundred thirty-six".