609013650 has 240 divisors, whose sum is σ = 1875549600. Its totient is φ = 130394880.

The previous prime is 609013637. The next prime is 609013651. The reversal of 609013650 is 56310906.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609013651) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6842806 + ... + 6842894.

It is an arithmetic number, because the mean of its divisors is an integer number (7814790).

Almost surely, 2^609013650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609013650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937774800).

609013650 is an abundant number, since it is smaller than the sum of its proper divisors (1266535950).

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

609013650 is a wasteful number, since it uses less digits than its factorization.

609013650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 609013650 is about 24678.2019199130. The cubic root of 609013650 is about 847.6352496011.

The spelling of 609013650 in words is "six hundred nine million, thirteen thousand, six hundred fifty".