44056991 has 16 divisors (see below), whose sum is σ = 51321600. Its totient is φ = 37396800.

The previous prime is 44056949. The next prime is 44056993. The reversal of 44056991 is 19965044.

44056991 = 485² + 486² + ... + 626².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44056991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44056993) 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 15 ways as a sum of consecutive naturals, for example, 13355 + ... + 16323.

It is an arithmetic number, because the mean of its divisors is an integer number (3207600).

Almost surely, 2^44056991 is an apocalyptic number.

44056991 is a deficient number, since it is larger than the sum of its proper divisors (7264609).

44056991 is a wasteful number, since it uses less digits than its factorization.

44056991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 44056991 is about 6637.5440488181. The cubic root of 44056991 is about 353.1871905608.

The spelling of 44056991 in words is "forty-four million, fifty-six thousand, nine hundred ninety-one".