869908400 has 30 divisors (see below), whose sum is σ = 2089955892. Its totient is φ = 347963200.

The previous prime is 869908379. The next prime is 869908409. The reversal of 869908400 is 4809968.

It is not an unprimeable number, because it can be changed into a prime (869908409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1086986 + ... + 1087785.

Almost surely, 2^869908400 is an apocalyptic number.

869908400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

869908400 is an abundant number, since it is smaller than the sum of its proper divisors (1220047492).

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

869908400 is a wasteful number, since it uses less digits than its factorization.

869908400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174789 (or 2174778 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 869908400 is about 29494.2096012082. The cubic root of 869908400 is about 954.6067659100.

The spelling of 869908400 in words is "eight hundred sixty-nine million, nine hundred eight thousand, four hundred".