3990772692 has 72 divisors (see below), whose sum is σ = 10919764800. Its totient is φ = 1260231696.

The previous prime is 3990772691. The next prime is 3990772741. The reversal of 3990772692 is 2962770993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990772691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12192 + ... + 90167.

It is an arithmetic number, because the mean of its divisors is an integer number (151663400).

Almost surely, 2^3990772692 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 3990772692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5459882400).

3990772692 is an abundant number, since it is smaller than the sum of its proper divisors (6928992108).

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

3990772692 is a wasteful number, since it uses less digits than its factorization.

3990772692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102410 (or 102383 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The square root of 3990772692 is about 63172.5628101314. The cubic root of 3990772692 is about 1586.1794923084.

The spelling of 3990772692 in words is "three billion, nine hundred ninety million, seven hundred seventy-two thousand, six hundred ninety-two".