44688428 has 12 divisors (see below), whose sum is σ = 78262800. Its totient is φ = 22327632.

The previous prime is 44688421. The next prime is 44688431. The reversal of 44688428 is 82488644.

It is a happy number.

It is a super-2 number, since 2×44688428² = 3994111194222368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44688421) 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, 3473 + ... + 10071.

It is an arithmetic number, because the mean of its divisors is an integer number (6521900).

Almost surely, 2^44688428 is an apocalyptic number.

It is an amenable number.

44688428 is a deficient number, since it is larger than the sum of its proper divisors (33574372).

44688428 is a wasteful number, since it uses less digits than its factorization.

44688428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8296 (or 8294 counting only the distinct ones).

The product of its digits is 393216, while the sum is 44.

The square root of 44688428 is about 6684.9403886647. The cubic root of 44688428 is about 354.8665186193.

The spelling of 44688428 in words is "forty-four million, six hundred eighty-eight thousand, four hundred twenty-eight".