74303428 has 12 divisors (see below), whose sum is σ = 132797952. Its totient is φ = 36361160.

The previous prime is 74303407. The next prime is 74303431. The reversal of 74303428 is 82430347.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74303428.

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, 197428 + ... + 197803.

It is an arithmetic number, because the mean of its divisors is an integer number (11066496).

Almost surely, 2^74303428 is an apocalyptic number.

It is an amenable number.

74303428 is a deficient number, since it is larger than the sum of its proper divisors (58494524).

74303428 is a wasteful number, since it uses less digits than its factorization.

74303428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395282 (or 395280 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 74303428 is about 8619.9436193052. The cubic root of 74303428 is about 420.4066884626.

The spelling of 74303428 in words is "seventy-four million, three hundred three thousand, four hundred twenty-eight".