3992140824 has 64 divisors (see below), whose sum is σ = 11410813440. Its totient is φ = 1140142080.

The previous prime is 3992140819. The next prime is 3992140879. The reversal of 3992140824 is 4280412993.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750157 + ... + 755459.

It is an arithmetic number, because the mean of its divisors is an integer number (178293960).

Almost surely, 2^3992140824 is an apocalyptic number.

It is an amenable number.

3992140824 is an abundant number, since it is smaller than the sum of its proper divisors (7418672616).

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

3992140824 is a wasteful number, since it uses less digits than its factorization.

With its successor (3992140825) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (9796).

With its successor (3992140825) it forms an eRAP, since the sums of their prime factors are consecutive (9800 and 9801).

3992140824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9800 (or 9796 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 3992140824 is about 63183.3904123544. The cubic root of 3992140824 is about 1586.3607316445.

The spelling of 3992140824 in words is "three billion, nine hundred ninety-two million, one hundred forty thousand, eight hundred twenty-four".