44197978 has 16 divisors (see below), whose sum is σ = 72433440. Its totient is φ = 20059600.

The previous prime is 44197963. The next prime is 44197999. The reversal of 44197978 is 87979144.

It is a super-2 number, since 2×44197978² = 3906922518576968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20328 + ... + 22396.

It is an arithmetic number, because the mean of its divisors is an integer number (4527090).

Almost surely, 2^44197978 is an apocalyptic number.

44197978 is a deficient number, since it is larger than the sum of its proper divisors (28235462).

44197978 is a wasteful number, since it uses less digits than its factorization.

44197978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its digits is 508032, while the sum is 49.

The square root of 44197978 is about 6648.1559849330. The cubic root of 44197978 is about 353.5635347711.

The spelling of 44197978 in words is "forty-four million, one hundred ninety-seven thousand, nine hundred seventy-eight".