44591490 has 24 divisors (see below), whose sum is σ = 115938108. Its totient is φ = 11891040.

The previous prime is 44591489. The next prime is 44591509. The reversal of 44591490 is 9419544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40870449 + 3721041 = 6393^2 + 1929^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247641 + ... + 247820.

Almost surely, 2^44591490 is an apocalyptic number.

44591490 is an abundant number, since it is smaller than the sum of its proper divisors (71346618).

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

44591490 is a wasteful number, since it uses less digits than its factorization.

44591490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495474 (or 495471 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 44591490 is about 6677.6859764442. The cubic root of 44591490 is about 354.6097410772.

The spelling of 44591490 in words is "forty-four million, five hundred ninety-one thousand, four hundred ninety".