44398661 has 4 divisors (see below), whose sum is σ = 45431232. Its totient is φ = 43366092.

The previous prime is 44398657. The next prime is 44398663. The reversal of 44398661 is 16689344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44398661 - 2² = 44398657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44398663) 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, 516221 + ... + 516306.

It is an arithmetic number, because the mean of its divisors is an integer number (11357808).

Almost surely, 2^44398661 is an apocalyptic number.

It is an amenable number.

44398661 is a deficient number, since it is larger than the sum of its proper divisors (1032571).

44398661 is a wasteful number, since it uses less digits than its factorization.

44398661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032570.

The product of its digits is 124416, while the sum is 41.

The square root of 44398661 is about 6663.2320235753. The cubic root of 44398661 is about 354.0978508481.

The spelling of 44398661 in words is "forty-four million, three hundred ninety-eight thousand, six hundred sixty-one".