308449474 has 4 divisors (see below), whose sum is σ = 462674214. Its totient is φ = 154224736.

The previous prime is 308449457. The next prime is 308449483. The reversal of 308449474 is 474944803.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 183792249 + 124657225 = 13557^2 + 11165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 308449474.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77112367 + ... + 77112370.

Almost surely, 2^308449474 is an apocalyptic number.

308449474 is a deficient number, since it is larger than the sum of its proper divisors (154224740).

308449474 is a wasteful number, since it uses less digits than its factorization.

308449474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154224739.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 308449474 is about 17562.7296853308. The cubic root of 308449474 is about 675.6596926889.

The spelling of 308449474 in words is "three hundred eight million, four hundred forty-nine thousand, four hundred seventy-four".