44991572 has 12 divisors (see below), whose sum is σ = 79910880. Its totient is φ = 22159896.

The previous prime is 44991553. The next prime is 44991577. The reversal of 44991572 is 27519944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44991577) by changing a digit.

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, 83672 + ... + 84207.

It is an arithmetic number, because the mean of its divisors is an integer number (6659240).

Almost surely, 2^44991572 is an apocalyptic number.

It is an amenable number.

44991572 is a deficient number, since it is larger than the sum of its proper divisors (34919308).

44991572 is a wasteful number, since it uses less digits than its factorization.

44991572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167950 (or 167948 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 44991572 is about 6707.5757170531. The cubic root of 44991572 is about 355.6671235094.

The spelling of 44991572 in words is "forty-four million, nine hundred ninety-one thousand, five hundred seventy-two".