44509990 has 32 divisors (see below), whose sum is σ = 91990080. Its totient is φ = 15189504.

The previous prime is 44509981. The next prime is 44509999. The reversal of 44509990 is 9990544.

44509990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44509981) and next prime (44509999).

It is a super-2 number, since 2×44509990² = 3962278419600200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44509999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14946 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (2874690).

Almost surely, 2^44509990 is an apocalyptic number.

44509990 is an abundant number, since it is smaller than the sum of its proper divisors (47480090).

44509990 is a wasteful number, since it uses less digits than its factorization.

44509990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 44509990 is about 6671.5807722008. The cubic root of 44509990 is about 354.3935688951.

The spelling of 44509990 in words is "forty-four million, five hundred nine thousand, nine hundred ninety".