44955621 has 8 divisors (see below), whose sum is σ = 66600960. Its totient is φ = 29970396.

The previous prime is 44955619. The next prime is 44955707. The reversal of 44955621 is 12655944.

44955621 is a `hidden beast` number, since 4 + 4 + 95 + 562 + 1 = 666.

It is not a de Polignac number, because 44955621 - 2¹ = 44955619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44955221) 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, 832485 + ... + 832538.

It is an arithmetic number, because the mean of its divisors is an integer number (8325120).

Almost surely, 2^44955621 is an apocalyptic number.

It is an amenable number.

44955621 is a deficient number, since it is larger than the sum of its proper divisors (21645339).

44955621 is a wasteful number, since it uses less digits than its factorization.

44955621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665032 (or 1665026 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 44955621 is about 6704.8953011960. The cubic root of 44955621 is about 355.5723650509.

The spelling of 44955621 in words is "forty-four million, nine hundred fifty-five thousand, six hundred twenty-one".