44678642 has 4 divisors (see below), whose sum is σ = 67017966. Its totient is φ = 22339320.

The previous prime is 44678639. The next prime is 44678653. The reversal of 44678642 is 24687644.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28526281 + 16152361 = 5341^2 + 4019^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44678642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11169659 + ... + 11169662.

Almost surely, 2^44678642 is an apocalyptic number.

44678642 is a deficient number, since it is larger than the sum of its proper divisors (22339324).

44678642 is a wasteful number, since it uses less digits than its factorization.

44678642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22339323.

The product of its digits is 258048, while the sum is 41.

The square root of 44678642 is about 6684.2084048898. The cubic root of 44678642 is about 354.8406134992.

The spelling of 44678642 in words is "forty-four million, six hundred seventy-eight thousand, six hundred forty-two".