100378830 has 16 divisors (see below), whose sum is σ = 240909264. Its totient is φ = 26767680.

The previous prime is 100378807. The next prime is 100378847. The reversal of 100378830 is 38873001.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3345961 = 100378830 / (1 + 0 + 0 + 3 + 7 + 8 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672951 + ... + 1673010.

It is an arithmetic number, because the mean of its divisors is an integer number (15056829).

Almost surely, 2^100378830 is an apocalyptic number.

100378830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100378830 is an abundant number, since it is smaller than the sum of its proper divisors (140530434).

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

100378830 is a wasteful number, since it uses less digits than its factorization.

100378830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345971.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 100378830 is about 10018.9235948778. The cubic root of 100378830 is about 464.7442691427.

The spelling of 100378830 in words is "one hundred million, three hundred seventy-eight thousand, eight hundred thirty".