818369420 has 48 divisors (see below), whose sum is σ = 1900529568. Its totient is φ = 293506560.

The previous prime is 818369393. The next prime is 818369437. The reversal of 818369420 is 24963818.

It is a super-2 number, since 2×818369420² = 1339457015182272800, which contains 22 as substring.

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, 9419 + ... + 41538.

It is an arithmetic number, because the mean of its divisors is an integer number (39594366).

Almost surely, 2^818369420 is an apocalyptic number.

It is an amenable number.

818369420 is an abundant number, since it is smaller than the sum of its proper divisors (1082160148).

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

818369420 is a wasteful number, since it uses less digits than its factorization.

818369420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51050 (or 51048 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 818369420 is about 28607.1567968577. The cubic root of 818369420 is about 935.3693413446.

The spelling of 818369420 in words is "eight hundred eighteen million, three hundred sixty-nine thousand, four hundred twenty".