609645474 has 16 divisors (see below), whose sum is σ = 1354767840. Its totient is φ = 203215140.

The previous prime is 609645427. The next prime is 609645493. The reversal of 609645474 is 474546906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5644812 + ... + 5644919.

It is an arithmetic number, because the mean of its divisors is an integer number (84672990).

Almost surely, 2^609645474 is an apocalyptic number.

609645474 is an abundant number, since it is smaller than the sum of its proper divisors (745122366).

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

609645474 is a wasteful number, since it uses less digits than its factorization.

609645474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289742 (or 11289736 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 609645474 is about 24690.9998582479. Note that the first 3 decimals coincide. The cubic root of 609645474 is about 847.9282759810.

The spelling of 609645474 in words is "six hundred nine million, six hundred forty-five thousand, four hundred seventy-four".