44663564 has 12 divisors (see below), whose sum is σ = 85266888. Its totient is φ = 20301600.

The previous prime is 44663557. The next prime is 44663569. The reversal of 44663564 is 46536644.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (44663569) 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, 507497 + ... + 507584.

It is an arithmetic number, because the mean of its divisors is an integer number (7105574).

Almost surely, 2^44663564 is an apocalyptic number.

44663564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44663564 is a deficient number, since it is larger than the sum of its proper divisors (40603324).

44663564 is a wasteful number, since it uses less digits than its factorization.

44663564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015096 (or 1015094 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 44663564 is about 6683.0804274676. The cubic root of 44663564 is about 354.8006921967.

Subtracting 44663564 from its reverse (46536644), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 44663564 in words is "forty-four million, six hundred sixty-three thousand, five hundred sixty-four".