100344080 has 20 divisors (see below), whose sum is σ = 233300172. Its totient is φ = 40137600.

The previous prime is 100344067. The next prime is 100344103. The reversal of 100344080 is 80443001.

It can be written as a sum of positive squares in 2 ways, for example, as 68624656 + 31719424 = 8284^2 + 5632^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627071 + ... + 627230.

Almost surely, 2^100344080 is an apocalyptic number.

100344080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100344080 is an abundant number, since it is smaller than the sum of its proper divisors (132956092).

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

100344080 is a wasteful number, since it uses less digits than its factorization.

100344080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254314 (or 1254308 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 100344080 is about 10017.1892265246. The cubic root of 100344080 is about 464.6906332404.

Adding to 100344080 its reverse (80443001), we get a palindrome (180787081).

The spelling of 100344080 in words is "one hundred million, three hundred forty-four thousand, eighty".