609242460 has 48 divisors (see below), whose sum is σ = 1709316000. Its totient is φ = 162137344.

The previous prime is 609242399. The next prime is 609242461. The reversal of 609242460 is 64242906.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609242461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20566 + ... + 40514.

It is an arithmetic number, because the mean of its divisors is an integer number (35610750).

Almost surely, 2^609242460 is an apocalyptic number.

609242460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

609242460 is an abundant number, since it is smaller than the sum of its proper divisors (1100073540).

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

609242460 is a wasteful number, since it uses less digits than its factorization.

609242460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20470 (or 20468 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 609242460 is about 24682.8373571597. The cubic root of 609242460 is about 847.7413901545.

The spelling of 609242460 in words is "six hundred nine million, two hundred forty-two thousand, four hundred sixty".