44631890 has 8 divisors (see below), whose sum is σ = 80337420. Its totient is φ = 17852752.

The previous prime is 44631863. The next prime is 44631911. The reversal of 44631890 is 9813644.

It can be written as a sum of positive squares in 2 ways, for example, as 43467649 + 1164241 = 6593^2 + 1079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 44631890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231585 + ... + 2231604.

Almost surely, 2^44631890 is an apocalyptic number.

44631890 is a deficient number, since it is larger than the sum of its proper divisors (35705530).

44631890 is a wasteful number, since it uses less digits than its factorization.

44631890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463196.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 44631890 is about 6680.7102915783. The cubic root of 44631890 is about 354.7168011851.

The spelling of 44631890 in words is "forty-four million, six hundred thirty-one thousand, eight hundred ninety".