801399436 has 12 divisors (see below), whose sum is σ = 1422202320. Its totient is φ = 395055920.

The previous prime is 801399421. The next prime is 801399451. The reversal of 801399436 is 634993108.

It is an interprime number because it is at equal distance from previous prime (801399421) and next prime (801399451).

It is a super-2 number, since 2×801399436² = 1284482112042236192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 801399392 and 801399401.

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, 1410631 + ... + 1411198.

It is an arithmetic number, because the mean of its divisors is an integer number (118516860).

Almost surely, 2^801399436 is an apocalyptic number.

It is an amenable number.

801399436 is a deficient number, since it is larger than the sum of its proper divisors (620802884).

801399436 is a wasteful number, since it uses less digits than its factorization.

801399436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821904 (or 2821902 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 801399436 is about 28308.9992051997. Note that the first 3 decimals coincide. The cubic root of 801399436 is about 928.8587519401.

The spelling of 801399436 in words is "eight hundred one million, three hundred ninety-nine thousand, four hundred thirty-six".