74274678 has 16 divisors (see below), whose sum is σ = 165054960. Its totient is φ = 24758208.

The previous prime is 74274643. The next prime is 74274679. The reversal of 74274678 is 87647247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74274679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687675 + ... + 687782.

It is an arithmetic number, because the mean of its divisors is an integer number (10315935).

Almost surely, 2^74274678 is an apocalyptic number.

74274678 is an abundant number, since it is smaller than the sum of its proper divisors (90780282).

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

74274678 is a wasteful number, since it uses less digits than its factorization.

74274678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375468 (or 1375462 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 74274678 is about 8618.2758136416. The cubic root of 74274678 is about 420.3524592395.

The spelling of 74274678 in words is "seventy-four million, two hundred seventy-four thousand, six hundred seventy-eight".