74639274 has 8 divisors (see below), whose sum is σ = 149278560. Its totient is φ = 24879756.

The previous prime is 74639263. The next prime is 74639281. The reversal of 74639274 is 47293647.

It is a sphenic number, since it is the product of 3 distinct primes.

74639274 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6219934 + ... + 6219945.

It is an arithmetic number, because the mean of its divisors is an integer number (18659820).

Almost surely, 2^74639274 is an apocalyptic number.

74639274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74639274 is a wasteful number, since it uses less digits than its factorization.

74639274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12439884.

The product of its digits is 254016, while the sum is 42.

The square root of 74639274 is about 8639.4024098892. The cubic root of 74639274 is about 421.0391389223.

The spelling of 74639274 in words is "seventy-four million, six hundred thirty-nine thousand, two hundred seventy-four".