308474642 has 8 divisors (see below), whose sum is σ = 528813696. Its totient is φ = 132203412.

The previous prime is 308474629. The next prime is 308474657. The reversal of 308474642 is 246474803.

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

It is a junction number, because it is equal to n+sod(n) for n = 308474596 and 308474605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11016938 + ... + 11016965.

It is an arithmetic number, because the mean of its divisors is an integer number (66101712).

Almost surely, 2^308474642 is an apocalyptic number.

308474642 is a deficient number, since it is larger than the sum of its proper divisors (220339054).

308474642 is a wasteful number, since it uses less digits than its factorization.

308474642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22033912.

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 308474642 is about 17563.4461880350. The cubic root of 308474642 is about 675.6780690542.

The spelling of 308474642 in words is "three hundred eight million, four hundred seventy-four thousand, six hundred forty-two".