100079220 has 48 divisors (see below), whose sum is σ = 280687680. Its totient is φ = 26643456.

The previous prime is 100079219. The next prime is 100079263. The reversal of 100079220 is 22970001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52036 + ... + 53924.

It is an arithmetic number, because the mean of its divisors is an integer number (5847660).

Almost surely, 2^100079220 is an apocalyptic number.

100079220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100079220 is an abundant number, since it is smaller than the sum of its proper divisors (180608460).

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

100079220 is a wasteful number, since it uses less digits than its factorization.

100079220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 100079220 is about 10003.9602158345. The cubic root of 100079220 is about 464.2814198983.

The spelling of 100079220 in words is "one hundred million, seventy-nine thousand, two hundred twenty".