74378227 has 12 divisors (see below), whose sum is σ = 94387896. Its totient is φ = 57956640.

The previous prime is 74378191. The next prime is 74378237. The reversal of 74378227 is 72287347.

It is not a de Polignac number, because 74378227 - 2⁷ = 74378099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74378227.

It is not an unprimeable number, because it can be changed into a prime (74378237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68458 + ... + 69535.

It is an arithmetic number, because the mean of its divisors is an integer number (7865658).

Almost surely, 2^74378227 is an apocalyptic number.

74378227 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74378227 is a deficient number, since it is larger than the sum of its proper divisors (20009669).

74378227 is a wasteful number, since it uses less digits than its factorization.

74378227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138018 (or 138011 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 74378227 is about 8624.2812454140. The cubic root of 74378227 is about 420.5477113589.

The spelling of 74378227 in words is "seventy-four million, three hundred seventy-eight thousand, two hundred twenty-seven".