44722978 has 4 divisors (see below), whose sum is σ = 67084470. Its totient is φ = 22361488.

The previous prime is 44722963. The next prime is 44722981. The reversal of 44722978 is 87922744.

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., 39400729 + 5322249 = 6277^2 + 2307^2 .

It is a super-2 number, since 2×44722978² = 4000289522376968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11180743 + ... + 11180746.

Almost surely, 2^44722978 is an apocalyptic number.

44722978 is a deficient number, since it is larger than the sum of its proper divisors (22361492).

44722978 is a wasteful number, since it uses less digits than its factorization.

44722978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22361491.

The product of its digits is 225792, while the sum is 43.

The square root of 44722978 is about 6687.5240560315. The cubic root of 44722978 is about 354.9579478060.

The spelling of 44722978 in words is "forty-four million, seven hundred twenty-two thousand, nine hundred seventy-eight".