674247428 has 6 divisors (see below), whose sum is σ = 1179933006. Its totient is φ = 337123712.

The previous prime is 674247403. The next prime is 674247449. The reversal of 674247428 is 824742476.

It can be written as a sum of positive squares in only one way, i.e., 671431744 + 2815684 = 25912^2 + 1678^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84280925 + ... + 84280932.

It is an arithmetic number, because the mean of its divisors is an integer number (196655501).

Almost surely, 2^674247428 is an apocalyptic number.

It is an amenable number.

674247428 is a deficient number, since it is larger than the sum of its proper divisors (505685578).

674247428 is a wasteful number, since it uses less digits than its factorization.

674247428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168561861 (or 168561859 counting only the distinct ones).

The product of its digits is 602112, while the sum is 44.

The square root of 674247428 is about 25966.2748194653. The cubic root of 674247428 is about 876.8791952132.

The spelling of 674247428 in words is "six hundred seventy-four million, two hundred forty-seven thousand, four hundred twenty-eight".