44620621 has 6 divisors (see below), whose sum is σ = 46645550. Its totient is φ = 42680088.

The previous prime is 44620601. The next prime is 44620633. The reversal of 44620621 is 12602644.

It can be written as a sum of positive squares in only one way, i.e., 38564100 + 6056521 = 6210^2 + 2461^2 .

It is not a de Polignac number, because 44620621 - 2¹³ = 44612429 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 (44620601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41646 + ... + 42703.

Almost surely, 2^44620621 is an apocalyptic number.

It is an amenable number.

44620621 is a deficient number, since it is larger than the sum of its proper divisors (2024929).

44620621 is an equidigital number, since it uses as much as digits as its factorization.

44620621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84395 (or 84372 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 44620621 is about 6679.8668399902. The cubic root of 44620621 is about 354.6869448043.

The spelling of 44620621 in words is "forty-four million, six hundred twenty thousand, six hundred twenty-one".