44298721 has 4 divisors (see below), whose sum is σ = 45727744. Its totient is φ = 42869700.

The previous prime is 44298647. The next prime is 44298733. The reversal of 44298721 is 12789244.

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 a de Polignac number, because none of the positive numbers 2^k-44298721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44298781) 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, 714465 + ... + 714526.

It is an arithmetic number, because the mean of its divisors is an integer number (11431936).

Almost surely, 2^44298721 is an apocalyptic number.

It is an amenable number.

44298721 is a deficient number, since it is larger than the sum of its proper divisors (1429023).

44298721 is a wasteful number, since it uses less digits than its factorization.

44298721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429022.

The product of its digits is 32256, while the sum is 37.

The square root of 44298721 is about 6655.7284349649. The cubic root of 44298721 is about 353.8319635105.

The spelling of 44298721 in words is "forty-four million, two hundred ninety-eight thousand, seven hundred twenty-one".