74642888 has 8 divisors (see below), whose sum is σ = 139955430. Its totient is φ = 37321440.

The previous prime is 74642881. The next prime is 74642929. The reversal of 74642888 is 88824647.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 57486724 + 17156164 = 7582^2 + 4142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (74642881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4665173 + ... + 4665188.

Almost surely, 2^74642888 is an apocalyptic number.

It is an amenable number.

74642888 is a deficient number, since it is larger than the sum of its proper divisors (65312542).

74642888 is a wasteful number, since it uses less digits than its factorization.

74642888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330367 (or 9330363 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 74642888 is about 8639.6115653425. The cubic root of 74642888 is about 421.0459343211.

It can be divided in two parts, 746 and 42888, that added together give a palindrome (43634).

The spelling of 74642888 in words is "seventy-four million, six hundred forty-two thousand, eight hundred eighty-eight".