44523621 has 8 divisors (see below), whose sum is σ = 65960960. Its totient is φ = 29682396.

The previous prime is 44523599. The next prime is 44523623. The reversal of 44523621 is 12632544.

It is not a de Polignac number, because 44523621 - 2¹¹ = 44521573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1649023 = 44523621 / (4 + 4 + 5 + 2 + 3 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44523623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824485 + ... + 824538.

It is an arithmetic number, because the mean of its divisors is an integer number (8245120).

Almost surely, 2^44523621 is an apocalyptic number.

It is an amenable number.

44523621 is a deficient number, since it is larger than the sum of its proper divisors (21437339).

44523621 is a wasteful number, since it uses less digits than its factorization.

44523621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649032 (or 1649026 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 44523621 is about 6672.6022659829. The cubic root of 44523621 is about 354.4297423900.

The spelling of 44523621 in words is "forty-four million, five hundred twenty-three thousand, six hundred twenty-one".