100690040 has 32 divisors (see below), whose sum is σ = 247149360. Its totient is φ = 36614400.

The previous prime is 100690033. The next prime is 100690123. The reversal of 100690040 is 40096001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100689994 and 100690021.

It is a congruent number.

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, 113981 + ... + 114860.

Almost surely, 2^100690040 is an apocalyptic number.

100690040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100690040 is an abundant number, since it is smaller than the sum of its proper divisors (146459320).

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

100690040 is a wasteful number, since it uses less digits than its factorization.

100690040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228863 (or 228859 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 100690040 is about 10034.4426850723. The cubic root of 100690040 is about 465.2240643666.

The spelling of 100690040 in words is "one hundred million, six hundred ninety thousand, forty".