74136898 has 32 divisors (see below), whose sum is σ = 135224640. Its totient is φ = 30044160.

The previous prime is 74136857. The next prime is 74136919. The reversal of 74136898 is 89863147.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890 + ... + 12322.

It is an arithmetic number, because the mean of its divisors is an integer number (4225770).

Almost surely, 2^74136898 is an apocalyptic number.

74136898 is a deficient number, since it is larger than the sum of its proper divisors (61087742).

74136898 is a wasteful number, since it uses less digits than its factorization.

74136898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482.

The product of its digits is 290304, while the sum is 46.

The square root of 74136898 is about 8610.2786249923. The cubic root of 74136898 is about 420.0923795283.

The spelling of 74136898 in words is "seventy-four million, one hundred thirty-six thousand, eight hundred ninety-eight".