44765721 has 48 divisors (see below), whose sum is σ = 86835840. Its totient is φ = 21461760.

The previous prime is 44765711. The next prime is 44765737. The reversal of 44765721 is 12756744.

It is not a de Polignac number, because 44765721 - 2¹⁰ = 44764697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44765701) 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 47 ways as a sum of consecutive naturals, for example, 6525 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (1809080).

Almost surely, 2^44765721 is an apocalyptic number.

It is an amenable number.

44765721 is a deficient number, since it is larger than the sum of its proper divisors (42070119).

44765721 is a wasteful number, since it uses less digits than its factorization.

44765721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006 (or 5003 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 44765721 is about 6690.7190196570. The cubic root of 44765721 is about 355.0709928772.

The spelling of 44765721 in words is "forty-four million, seven hundred sixty-five thousand, seven hundred twenty-one".