100445884 has 36 divisors (see below), whose sum is σ = 223072920. Its totient is φ = 39133920.

The previous prime is 100445881. The next prime is 100445897. The reversal of 100445884 is 488544001.

It is a super-2 number, since 2×100445884² = 20178751225082912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100445881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21139 + ... + 25450.

It is an arithmetic number, because the mean of its divisors is an integer number (6196470).

Almost surely, 2^100445884 is an apocalyptic number.

100445884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100445884 is an abundant number, since it is smaller than the sum of its proper divisors (122627036).

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

100445884 is a wasteful number, since it uses less digits than its factorization.

100445884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46618 (or 46609 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 100445884 is about 10022.2694036830. The cubic root of 100445884 is about 464.8477306187.

Adding to 100445884 its reverse (488544001), we get a palindrome (588989885).

The spelling of 100445884 in words is "one hundred million, four hundred forty-five thousand, eight hundred eighty-four".