74427018 has 16 divisors (see below), whose sum is σ = 149333376. Its totient is φ = 24729120.

The previous prime is 74427007. The next prime is 74427029. The reversal of 74427018 is 81072447.

It is an interprime number because it is at equal distance from previous prime (74427007) and next prime (74427029).

It is a self number, because there is not a number n which added to its sum of digits gives 74427018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17938 + ... + 21693.

It is an arithmetic number, because the mean of its divisors is an integer number (9333336).

Almost surely, 2^74427018 is an apocalyptic number.

74427018 is an abundant number, since it is smaller than the sum of its proper divisors (74906358).

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

74427018 is a wasteful number, since it uses less digits than its factorization.

74427018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39949.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 74427018 is about 8627.1094811646. The cubic root of 74427018 is about 420.6396489198.

The spelling of 74427018 in words is "seventy-four million, four hundred twenty-seven thousand, eighteen".