74494128 has 20 divisors (see below), whose sum is σ = 192443288. Its totient is φ = 24831360.

The previous prime is 74494109. The next prime is 74494129. The reversal of 74494128 is 82149447.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74494129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775933 + ... + 776028.

Almost surely, 2^74494128 is an apocalyptic number.

It is an amenable number.

74494128 is an abundant number, since it is smaller than the sum of its proper divisors (117949160).

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

74494128 is a wasteful number, since it uses less digits than its factorization.

74494128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551972 (or 1551966 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 74494128 is about 8630.9980882862. The cubic root of 74494128 is about 420.7660396097.

The spelling of 74494128 in words is "seventy-four million, four hundred ninety-four thousand, one hundred twenty-eight".