44136457 has 4 divisors (see below), whose sum is σ = 44741140. Its totient is φ = 43531776.

The previous prime is 44136413. The next prime is 44136473. The reversal of 44136457 is 75463144.

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 21678336 + 22458121 = 4656^2 + 4739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44136457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44136857) 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, 302232 + ... + 302377.

It is an arithmetic number, because the mean of its divisors is an integer number (11185285).

Almost surely, 2^44136457 is an apocalyptic number.

It is an amenable number.

44136457 is a deficient number, since it is larger than the sum of its proper divisors (604683).

44136457 is an equidigital number, since it uses as much as digits as its factorization.

44136457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604682.

The product of its digits is 40320, while the sum is 34.

The square root of 44136457 is about 6643.5274515877. The cubic root of 44136457 is about 353.3994120116.

The spelling of 44136457 in words is "forty-four million, one hundred thirty-six thousand, four hundred fifty-seven".