74721356 has 12 divisors (see below), whose sum is σ = 130949280. Its totient is φ = 37307280.

The previous prime is 74721343. The next prime is 74721359. The reversal of 74721356 is 65312747.

It is not an unprimeable number, because it can be changed into a prime (74721359) 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, 10115 + ... + 15866.

It is an arithmetic number, because the mean of its divisors is an integer number (10912440).

Almost surely, 2^74721356 is an apocalyptic number.

It is an amenable number.

74721356 is a deficient number, since it is larger than the sum of its proper divisors (56227924).

74721356 is a wasteful number, since it uses less digits than its factorization.

74721356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26704 (or 26702 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 74721356 is about 8644.1515488797. The cubic root of 74721356 is about 421.1934235317.

The spelling of 74721356 in words is "seventy-four million, seven hundred twenty-one thousand, three hundred fifty-six".