44490090 has 16 divisors (see below), whose sum is σ = 106776288. Its totient is φ = 11864016.

The previous prime is 44490067. The next prime is 44490101. The reversal of 44490090 is 9009444.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1483003 = 44490090 / (4 + 4 + 4 + 9 + 0 + 0 + 9 + 0).

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, 741472 + ... + 741531.

It is an arithmetic number, because the mean of its divisors is an integer number (6673518).

Almost surely, 2^44490090 is an apocalyptic number.

44490090 is an abundant number, since it is smaller than the sum of its proper divisors (62286198).

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

44490090 is a wasteful number, since it uses less digits than its factorization.

44490090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483013.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 44490090 is about 6670.0892048008. The cubic root of 44490090 is about 354.3407456727.

The spelling of 44490090 in words is "forty-four million, four hundred ninety thousand, ninety".