609910560 has 432 divisors, whose sum is σ = 2499771456. Its totient is φ = 137728512.

The previous prime is 609910537. The next prime is 609910589. The reversal of 609910560 is 65019906.

609910560 is a `hidden beast` number, since 6 + 0 + 9 + 91 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7348279 + ... + 7348361.

It is an arithmetic number, because the mean of its divisors is an integer number (5786508).

Almost surely, 2^609910560 is an apocalyptic number.

609910560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609910560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249885728).

609910560 is an abundant number, since it is smaller than the sum of its proper divisors (1889860896).

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

609910560 is an frugal number, since it uses more digits than its factorization.

609910560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 609910560 is about 24696.3673442067. The cubic root of 609910560 is about 848.0511568758.

The spelling of 609910560 in words is "six hundred nine million, nine hundred ten thousand, five hundred sixty".