74274078 has 32 divisors (see below), whose sum is σ = 161418240. Its totient is φ = 22697280.

The previous prime is 74274077. The next prime is 74274091. The reversal of 74274078 is 87047247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74274073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6975 + ... + 14042.

It is an arithmetic number, because the mean of its divisors is an integer number (5044320).

Almost surely, 2^74274078 is an apocalyptic number.

74274078 is an abundant number, since it is smaller than the sum of its proper divisors (87144162).

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

74274078 is a wasteful number, since it uses less digits than its factorization.

74274078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072.

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 74274078 is about 8618.2410038244. The cubic root of 74274078 is about 420.3513273501.

The spelling of 74274078 in words is "seventy-four million, two hundred seventy-four thousand, seventy-eight".