44545657 has 8 divisors (see below), whose sum is σ = 48512520. Its totient is φ = 40656000.

The previous prime is 44545643. The next prime is 44545663. The reversal of 44545657 is 75654544.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1301881 + 43243776 = 1141^2 + 6576^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44545657 - 2²³ = 36157049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44545637) 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, 18094 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (6064065).

Almost surely, 2^44545657 is an apocalyptic number.

It is an amenable number.

44545657 is a deficient number, since it is larger than the sum of its proper divisors (3966863).

44545657 is a wasteful number, since it uses less digits than its factorization.

44545657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38603.

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

The square root of 44545657 is about 6674.2532915675. The cubic root of 44545657 is about 354.4882051826.

The spelling of 44545657 in words is "forty-four million, five hundred forty-five thousand, six hundred fifty-seven".