1392790828 has 72 divisors (see below), whose sum is σ = 2956111200. Its totient is φ = 570028800.

The previous prime is 1392790813. The next prime is 1392790849. The reversal of 1392790828 is 8280972931.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255273 + ... + 260671.

It is an arithmetic number, because the mean of its divisors is an integer number (41057100).

Almost surely, 2^1392790828 is an apocalyptic number.

It is an amenable number.

1392790828 is an abundant number, since it is smaller than the sum of its proper divisors (1563320372).

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

1392790828 is a wasteful number, since it uses less digits than its factorization.

1392790828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479 (or 5466 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1392790828 is about 37320.1129151561. The cubic root of 1392790828 is about 1116.7654411872.

The spelling of 1392790828 in words is "one billion, three hundred ninety-two million, seven hundred ninety thousand, eight hundred twenty-eight".