44570857 has 4 divisors (see below), whose sum is σ = 44618580. Its totient is φ = 44523136.

The previous prime is 44570843. The next prime is 44570893. The reversal of 44570857 is 75807544.

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 13868176 + 30702681 = 3724^2 + 5541^2 .

It is a cyclic number.

It is not a de Polignac number, because 44570857 - 2¹⁵ = 44538089 is a prime.

It is a super-2 number, since 2×44570857² = 3973122587428898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44570837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22432 + ... + 24337.

It is an arithmetic number, because the mean of its divisors is an integer number (11154645).

Almost surely, 2^44570857 is an apocalyptic number.

It is an amenable number.

44570857 is a deficient number, since it is larger than the sum of its proper divisors (47723).

44570857 is an equidigital number, since it uses as much as digits as its factorization.

44570857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47722.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 44570857 is about 6676.1408762847. The cubic root of 44570857 is about 354.5550386248. Note that the first 3 decimals are identical.

The spelling of 44570857 in words is "forty-four million, five hundred seventy thousand, eight hundred fifty-seven".