44357421 has 16 divisors (see below), whose sum is σ = 60066944. Its totient is φ = 29113344.

The previous prime is 44357399. The next prime is 44357447. The reversal of 44357421 is 12475344.

It is not a de Polignac number, because 44357421 - 2¹⁷ = 44226349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44357461) 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, 90840 + ... + 91326.

It is an arithmetic number, because the mean of its divisors is an integer number (3754184).

Almost surely, 2^44357421 is an apocalyptic number.

It is an amenable number.

44357421 is a deficient number, since it is larger than the sum of its proper divisors (15709523).

44357421 is a wasteful number, since it uses less digits than its factorization.

44357421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its digits is 13440, while the sum is 30.

The square root of 44357421 is about 6660.1367103086. The cubic root of 44357421 is about 353.9881814817.

The spelling of 44357421 in words is "forty-four million, three hundred fifty-seven thousand, four hundred twenty-one".