74451944 has 16 divisors (see below), whose sum is σ = 159540000. Its totient is φ = 31907952.

The previous prime is 74451931. The next prime is 74451947. The reversal of 74451944 is 44915447.

It is a junction number, because it is equal to n+sod(n) for n = 74451898 and 74451907.

It is not an unprimeable number, because it can be changed into a prime (74451947) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 664694 + ... + 664805.

It is an arithmetic number, because the mean of its divisors is an integer number (9971250).

Almost surely, 2^74451944 is an apocalyptic number.

It is an amenable number.

74451944 is an abundant number, since it is smaller than the sum of its proper divisors (85088056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74451944 is a wasteful number, since it uses less digits than its factorization.

74451944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329512 (or 1329508 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 74451944 is about 8628.5539924138. The cubic root of 74451944 is about 420.6866018226.

The spelling of 74451944 in words is "seventy-four million, four hundred fifty-one thousand, nine hundred forty-four".