74223898 has 32 divisors (see below), whose sum is σ = 133353216. Its totient is φ = 30294528.

The previous prime is 74223893. The next prime is 74223911. The reversal of 74223898 is 89832247.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74223893) 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 15 ways as a sum of consecutive naturals, for example, 113340 + ... + 113992.

It is an arithmetic number, because the mean of its divisors is an integer number (4167288).

Almost surely, 2^74223898 is an apocalyptic number.

74223898 is a deficient number, since it is larger than the sum of its proper divisors (59129318).

74223898 is a wasteful number, since it uses less digits than its factorization.

74223898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038.

The product of its digits is 193536, while the sum is 43.

The square root of 74223898 is about 8615.3292450144. The cubic root of 74223898 is about 420.2566420880.

The spelling of 74223898 in words is "seventy-four million, two hundred twenty-three thousand, eight hundred ninety-eight".