44774991 has 16 divisors (see below), whose sum is σ = 70236000. Its totient is φ = 28093824.

The previous prime is 44774971. The next prime is 44775019. The reversal of 44774991 is 19947744.

It is not a de Polignac number, because 44774991 - 2¹⁴ = 44758607 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44774971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48316 + ... + 49233.

It is an arithmetic number, because the mean of its divisors is an integer number (4389750).

Almost surely, 2^44774991 is an apocalyptic number.

44774991 is a deficient number, since it is larger than the sum of its proper divisors (25461009).

44774991 is a wasteful number, since it uses less digits than its factorization.

44774991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97575 (or 97569 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 44774991 is about 6691.4117344548. The cubic root of 44774991 is about 355.0955003266.

The spelling of 44774991 in words is "forty-four million, seven hundred seventy-four thousand, nine hundred ninety-one".