100908215400 has 48 divisors (see below), whose sum is σ = 312815469600. Its totient is φ = 26908857280.

The previous prime is 100908215393. The next prime is 100908215431. The reversal of 100908215400 is 4512809001.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84089580 + ... + 84090779.

It is an arithmetic number, because the mean of its divisors is an integer number (6516988950).

Almost surely, 2^100908215400 is an apocalyptic number.

100908215400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100908215400 is an abundant number, since it is smaller than the sum of its proper divisors (211907254200).

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

100908215400 is a wasteful number, since it uses less digits than its factorization.

100908215400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168180378 (or 168180369 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 100908215400 in words is "one hundred billion, nine hundred eight million, two hundred fifteen thousand, four hundred".