18100344 has 16 divisors (see below), whose sum is σ = 45250920. Its totient is φ = 6033440.

The previous prime is 18100343. The next prime is 18100351. The reversal of 18100344 is 44300181.

It is a self number, because there is not a number n which added to its sum of digits gives 18100344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18100343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377067 + ... + 377114.

Almost surely, 2^18100344 is an apocalyptic number.

It is an amenable number.

18100344 is an abundant number, since it is smaller than the sum of its proper divisors (27150576).

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

18100344 is a wasteful number, since it uses less digits than its factorization.

18100344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754190 (or 754186 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 18100344 is about 4254.4499056870. The cubic root of 18100344 is about 262.5602292636.

The spelling of 18100344 in words is "eighteen million, one hundred thousand, three hundred forty-four".