790390840 has 16 divisors (see below), whose sum is σ = 1778379480. Its totient is φ = 316156320.

The previous prime is 790390807. The next prime is 790390871. The reversal of 790390840 is 48093097.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 19759771 = 790390840 / (7 + 9 + 0 + 3 + 9 + 0 + 8 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 790390793 and 790390802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9879846 + ... + 9879925.

Almost surely, 2^790390840 is an apocalyptic number.

It is an amenable number.

790390840 is an abundant number, since it is smaller than the sum of its proper divisors (987988640).

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

790390840 is a wasteful number, since it uses less digits than its factorization.

790390840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19759782 (or 19759778 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 790390840 is about 28113.8905169669. The cubic root of 790390840 is about 924.5859710272.

The spelling of 790390840 in words is "seven hundred ninety million, three hundred ninety thousand, eight hundred forty".