44455657 has 4 divisors (see below), whose sum is σ = 44492500. Its totient is φ = 44418816.

The previous prime is 44455633. The next prime is 44455661. The reversal of 44455657 is 75655444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8886361 + 35569296 = 2981^2 + 5964^2 .

It is a cyclic number.

It is not a de Polignac number, because 44455657 - 2²³ = 36067049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44455627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16548 + ... + 19045.

It is an arithmetic number, because the mean of its divisors is an integer number (11123125).

Almost surely, 2^44455657 is an apocalyptic number.

It is an amenable number.

44455657 is a deficient number, since it is larger than the sum of its proper divisors (36843).

44455657 is a wasteful number, since it uses less digits than its factorization.

44455657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36842.

The product of its digits is 336000, while the sum is 40.

The square root of 44455657 is about 6667.5075553013. The cubic root of 44455657 is about 354.2493083519.

The spelling of 44455657 in words is "forty-four million, four hundred fifty-five thousand, six hundred fifty-seven".