74431424 has 14 divisors (see below), whose sum is σ = 147699984. Its totient is φ = 37215680.

The previous prime is 74431421. The next prime is 74431477. The reversal of 74431424 is 42413447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74431421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581432 + ... + 581559.

Almost surely, 2^74431424 is an apocalyptic number.

It is an amenable number.

74431424 is a deficient number, since it is larger than the sum of its proper divisors (73268560).

74431424 is a wasteful number, since it uses less digits than its factorization.

74431424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163003 (or 1162993 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 74431424 is about 8627.3648352205. The cubic root of 74431424 is about 420.6479492287.

The spelling of 74431424 in words is "seventy-four million, four hundred thirty-one thousand, four hundred twenty-four".