74427146 has 4 divisors (see below), whose sum is σ = 111640722. Its totient is φ = 37213572.

The previous prime is 74427127. The next prime is 74427163. The reversal of 74427146 is 64172447.

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

It can be written as a sum of positive squares in only one way, i.e., 53860921 + 20566225 = 7339^2 + 4535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18606785 + ... + 18606788.

Almost surely, 2^74427146 is an apocalyptic number.

74427146 is a deficient number, since it is larger than the sum of its proper divisors (37213576).

74427146 is a wasteful number, since it uses less digits than its factorization.

74427146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37213575.

The product of its digits is 37632, while the sum is 35.

The square root of 74427146 is about 8627.1168996369. The cubic root of 74427146 is about 420.6398900591.

The spelling of 74427146 in words is "seventy-four million, four hundred twenty-seven thousand, one hundred forty-six".