100389900 has 72 divisors (see below), whose sum is σ = 312816784. Its totient is φ = 24710400.

The previous prime is 100389893. The next prime is 100389923. The reversal of 100389900 is 9983001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8971 + ... + 16770.

Almost surely, 2^100389900 is an apocalyptic number.

100389900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100389900 is an abundant number, since it is smaller than the sum of its proper divisors (212426884).

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

100389900 is a wasteful number, since it uses less digits than its factorization.

100389900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25771 (or 25764 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 100389900 is about 10019.4760342046. The cubic root of 100389900 is about 464.7613528576.

The spelling of 100389900 in words is "one hundred million, three hundred eighty-nine thousand, nine hundred".