100865400 has 48 divisors (see below), whose sum is σ = 312684600. Its totient is φ = 26897280.

The previous prime is 100865377. The next prime is 100865411. The reversal of 100865400 is 4568001.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83455 + ... + 84654.

Almost surely, 2^100865400 is an apocalyptic number.

100865400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100865400 is an abundant number, since it is smaller than the sum of its proper divisors (211819200).

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

100865400 is a wasteful number, since it uses less digits than its factorization.

100865400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168128 (or 168119 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 100865400 is about 10043.1767882478. The cubic root of 100865400 is about 465.4939830771.

It can be divided in two parts, 10086 and 5400, that multiplied together give a square (54464400 = 7380²).

The spelling of 100865400 in words is "one hundred million, eight hundred sixty-five thousand, four hundred".