790021252 has 6 divisors (see below), whose sum is σ = 1382537198. Its totient is φ = 395010624.

The previous prime is 790021247. The next prime is 790021283. The reversal of 790021252 is 252120097.

It can be written as a sum of positive squares in only one way, i.e., 463713156 + 326308096 = 21534^2 + 18064^2 .

It is a super-2 number, since 2×790021252² = 1248267157223295008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 790021252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98752653 + ... + 98752660.

Almost surely, 2^790021252 is an apocalyptic number.

It is an amenable number.

790021252 is a deficient number, since it is larger than the sum of its proper divisors (592515946).

790021252 is a wasteful number, since it uses less digits than its factorization.

790021252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197505317 (or 197505315 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 790021252 is about 28107.3166986819. The cubic root of 790021252 is about 924.4418359408.

The spelling of 790021252 in words is "seven hundred ninety million, twenty-one thousand, two hundred fifty-two".