44375661 has 72 divisors (see below), whose sum is σ = 78395520. Its totient is φ = 24773760.

The previous prime is 44375647. The next prime is 44375689. The reversal of 44375661 is 16657344.

It is a happy number.

It is not a de Polignac number, because 44375661 - 2¹¹ = 44373613 is a prime.

Its product of digits (60480) is a multiple of the sum of its prime factors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44375561) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 944140 + ... + 944186.

Almost surely, 2^44375661 is an apocalyptic number.

It is an amenable number.

44375661 is a deficient number, since it is larger than the sum of its proper divisors (34019859).

44375661 is a wasteful number, since it uses less digits than its factorization.

44375661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 78 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 44375661 is about 6661.5059108283. The cubic root of 44375661 is about 354.0366954204.

The spelling of 44375661 in words is "forty-four million, three hundred seventy-five thousand, six hundred sixty-one".