44190138 has 16 divisors (see below), whose sum is σ = 88447680. Its totient is φ = 14718816.

The previous prime is 44190127. The next prime is 44190149. The reversal of 44190138 is 83109144.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (44190127) and next prime (44190149).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10758 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (5527980).

Almost surely, 2^44190138 is an apocalyptic number.

44190138 is an abundant number, since it is smaller than the sum of its proper divisors (44257542).

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

44190138 is a wasteful number, since it uses less digits than its factorization.

44190138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 44190138 is about 6647.5663215947. The cubic root of 44190138 is about 353.5426280679.

The spelling of 44190138 in words is "forty-four million, one hundred ninety thousand, one hundred thirty-eight".