609905460 has 48 divisors (see below), whose sum is σ = 1715103936. Its totient is φ = 161939712.

The previous prime is 609905449. The next prime is 609905473. The reversal of 609905460 is 64509906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7834 + ... + 35793.

It is an arithmetic number, because the mean of its divisors is an integer number (35731332).

Almost surely, 2^609905460 is an apocalyptic number.

609905460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

609905460 is an abundant number, since it is smaller than the sum of its proper divisors (1105198476).

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

609905460 is a wasteful number, since it uses less digits than its factorization.

609905460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43872 (or 43870 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 609905460 is about 24696.2640899388. The cubic root of 609905460 is about 848.0487931014.

The spelling of 609905460 in words is "six hundred nine million, nine hundred five thousand, four hundred sixty".