44564427 has 18 divisors (see below), whose sum is σ = 65093028. Its totient is φ = 29379672.

The previous prime is 44564393. The next prime is 44564437. The reversal of 44564427 is 72446544.

44564427 is a `hidden beast` number, since 4 + 4 + 5 + 644 + 2 + 7 = 666.

It is not a de Polignac number, because 44564427 - 2¹¹ = 44562379 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 44564391 and 44564400.

It is not an unprimeable number, because it can be changed into a prime (44564437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145008 + ... + 145314.

Almost surely, 2^44564427 is an apocalyptic number.

44564427 is a deficient number, since it is larger than the sum of its proper divisors (20528601).

44564427 is a wasteful number, since it uses less digits than its factorization.

44564427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 437 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 44564427 is about 6675.6592932833. The cubic root of 44564427 is about 354.5379878829.

The spelling of 44564427 in words is "forty-four million, five hundred sixty-four thousand, four hundred twenty-seven".