74157422 has 4 divisors (see below), whose sum is σ = 111236136. Its totient is φ = 37078710.

The previous prime is 74157401. The next prime is 74157431. The reversal of 74157422 is 22475147.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18539354 + ... + 18539357.

It is an arithmetic number, because the mean of its divisors is an integer number (27809034).

Almost surely, 2^74157422 is an apocalyptic number.

74157422 is a deficient number, since it is larger than the sum of its proper divisors (37078714).

74157422 is a wasteful number, since it uses less digits than its factorization.

74157422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37078713.

The product of its digits is 15680, while the sum is 32.

The square root of 74157422 is about 8611.4703738676. The cubic root of 74157422 is about 420.1311419652.

The spelling of 74157422 in words is "seventy-four million, one hundred fifty-seven thousand, four hundred twenty-two".