74172834 has 28 divisors (see below), whose sum is σ = 166815846. Its totient is φ = 24723792.

The previous prime is 74172823. The next prime is 74172841. The reversal of 74172834 is 43827147.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60886809 + 13286025 = 7803^2 + 3645^2 .

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 13 ways as a sum of consecutive naturals, for example, 23979 + ... + 26894.

Almost surely, 2^74172834 is an apocalyptic number.

74172834 is an abundant number, since it is smaller than the sum of its proper divisors (92643012).

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

74172834 is an equidigital number, since it uses as much as digits as its factorization.

74172834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50893 (or 50878 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 74172834 is about 8612.3651803671. The cubic root of 74172834 is about 420.1602449755.

The spelling of 74172834 in words is "seventy-four million, one hundred seventy-two thousand, eight hundred thirty-four".