74224146 has 32 divisors (see below), whose sum is σ = 160493760. Its totient is φ = 22804416.

The previous prime is 74224121. The next prime is 74224177. The reversal of 74224146 is 64142247.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4581 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (5015430).

Almost surely, 2^74224146 is an apocalyptic number.

74224146 is an abundant number, since it is smaller than the sum of its proper divisors (86269614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74224146 is a wasteful number, since it uses less digits than its factorization.

74224146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658.

The product of its digits is 10752, while the sum is 30.

The square root of 74224146 is about 8615.3436379520. The cubic root of 74224146 is about 420.2571101472.

The spelling of 74224146 in words is "seventy-four million, two hundred twenty-four thousand, one hundred forty-six".