609405492 has 24 divisors (see below), whose sum is σ = 1430674336. Its totient is φ = 201888288.

The previous prime is 609405491. The next prime is 609405521. The reversal of 609405492 is 294504906.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 609405492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609405491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153823 + ... + 157734.

Almost surely, 2^609405492 is an apocalyptic number.

It is an amenable number.

609405492 is an abundant number, since it is smaller than the sum of its proper divisors (821268844).

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

609405492 is a wasteful number, since it uses less digits than its factorization.

609405492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311727 (or 311725 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 609405492 is about 24686.1396739142. The cubic root of 609405492 is about 847.8170013477.

The spelling of 609405492 in words is "six hundred nine million, four hundred five thousand, four hundred ninety-two".