100805394 has 32 divisors (see below), whose sum is σ = 206403840. Its totient is φ = 32810832.

The previous prime is 100805381. The next prime is 100805399. The reversal of 100805394 is 493508001.

It is not an unprimeable number, because it can be changed into a prime (100805399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56829 + ... + 58575.

It is an arithmetic number, because the mean of its divisors is an integer number (6450120).

Almost surely, 2^100805394 is an apocalyptic number.

100805394 is an abundant number, since it is smaller than the sum of its proper divisors (105598446).

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

100805394 is a wasteful number, since it uses less digits than its factorization.

100805394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 100805394 is about 10040.1889424453. The cubic root of 100805394 is about 465.4016555037.

The spelling of 100805394 in words is "one hundred million, eight hundred five thousand, three hundred ninety-four".