44021490 has 32 divisors (see below), whose sum is σ = 108509760. Its totient is φ = 11421504.

The previous prime is 44021441. The next prime is 44021531. The reversal of 44021490 is 9412044.

It is a self number, because there is not a number n which added to its sum of digits gives 44021490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18720 + ... + 20939.

It is an arithmetic number, because the mean of its divisors is an integer number (3390930).

Almost surely, 2^44021490 is an apocalyptic number.

44021490 is an abundant number, since it is smaller than the sum of its proper divisors (64488270).

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

44021490 is a wasteful number, since it uses less digits than its factorization.

44021490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39706.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 44021490 is about 6634.8692526681. The cubic root of 44021490 is about 353.0922993187.

The spelling of 44021490 in words is "forty-four million, twenty-one thousand, four hundred ninety".