74434688 has 16 divisors (see below), whose sum is σ = 148288110. Its totient is φ = 37217280.

The previous prime is 74434643. The next prime is 74434691. The reversal of 74434688 is 88643447.

It can be written as a sum of positive squares in only one way, i.e., 69089344 + 5345344 = 8312^2 + 2312^2 .

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 290633 + ... + 290888.

Almost surely, 2^74434688 is an apocalyptic number.

It is an amenable number.

74434688 is a deficient number, since it is larger than the sum of its proper divisors (73853422).

74434688 is an equidigital number, since it uses as much as digits as its factorization.

74434688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581535 (or 581523 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The square root of 74434688 is about 8627.5539986719. The cubic root of 74434688 is about 420.6540979526.

The spelling of 74434688 in words is "seventy-four million, four hundred thirty-four thousand, six hundred eighty-eight".