869218404 has 24 divisors (see below), whose sum is σ = 2028932640. Its totient is φ = 289631424.

The previous prime is 869218351. The next prime is 869218417. The reversal of 869218404 is 404812968.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24232 + ... + 48224.

It is an arithmetic number, because the mean of its divisors is an integer number (84538860).

Almost surely, 2^869218404 is an apocalyptic number.

It is an amenable number.

869218404 is an abundant number, since it is smaller than the sum of its proper divisors (1159714236).

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

869218404 is a wasteful number, since it uses less digits than its factorization.

869218404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27019 (or 27017 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 869218404 is about 29482.5101373679. The cubic root of 869218404 is about 954.3543067328.

The spelling of 869218404 in words is "eight hundred sixty-nine million, two hundred eighteen thousand, four hundred four".