44120457 has 30 divisors (see below), whose sum is σ = 70177338. Its totient is φ = 27528768.

The previous prime is 44120443. The next prime is 44120459. The reversal of 44120457 is 75402144.

It can be written as a sum of positive squares in only one way, i.e., 41525136 + 2595321 = 6444^2 + 1611^2 .

It is not a de Polignac number, because 44120457 - 2⁴ = 44120441 is a prime.

It is a super-2 number, since 2×44120457² = 3893229451777698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 44120457.

It is not an unprimeable number, because it can be changed into a prime (44120459) 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 29 ways as a sum of consecutive naturals, for example, 246394 + ... + 246572.

Almost surely, 2^44120457 is an apocalyptic number.

It is an amenable number.

44120457 is a deficient number, since it is larger than the sum of its proper divisors (26056881).

44120457 is an equidigital number, since it uses as much as digits as its factorization.

44120457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 44120457 is about 6642.3231628701. The cubic root of 44120457 is about 353.3567029952.

The spelling of 44120457 in words is "forty-four million, one hundred twenty thousand, four hundred fifty-seven".