609249474 has 24 divisors (see below), whose sum is σ = 1355718780. Its totient is φ = 197594208.

The previous prime is 609249457. The next prime is 609249493. The reversal of 609249474 is 474942906.

609249474 is a `hidden beast` number, since 6 + 0 + 92 + 494 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 602358849 + 6890625 = 24543^2 + 2625^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456729 + ... + 458060.

Almost surely, 2^609249474 is an apocalyptic number.

609249474 is an abundant number, since it is smaller than the sum of its proper divisors (746469306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609249474 is a wasteful number, since it uses less digits than its factorization.

609249474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914834 (or 914831 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 609249474 is about 24682.9794392816. The cubic root of 609249474 is about 847.7446433942.

The spelling of 609249474 in words is "six hundred nine million, two hundred forty-nine thousand, four hundred seventy-four".