44972561 has 8 divisors (see below), whose sum is σ = 46203264. Its totient is φ = 43753360.

The previous prime is 44972549. The next prime is 44972569. The reversal of 44972561 is 16527944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44972561 - 2¹⁸ = 44710417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44972569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5366 + ... + 10896.

It is an arithmetic number, because the mean of its divisors is an integer number (5775408).

Almost surely, 2^44972561 is an apocalyptic number.

It is an amenable number.

44972561 is a deficient number, since it is larger than the sum of its proper divisors (1230703).

44972561 is a wasteful number, since it uses less digits than its factorization.

44972561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751.

The product of its digits is 60480, while the sum is 38.

The square root of 44972561 is about 6706.1584383311. The cubic root of 44972561 is about 355.6170212349.

The spelling of 44972561 in words is "forty-four million, nine hundred seventy-two thousand, five hundred sixty-one".