609240852 has 144 divisors (see below), whose sum is σ = 1834560000. Its totient is φ = 174843360.

The previous prime is 609240851. The next prime is 609240881. The reversal of 609240852 is 258042906.

It is a happy number.

609240852 is a `hidden beast` number, since 609 + 2 + 40 + 8 + 5 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609240851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201649 + ... + 204647.

It is an arithmetic number, because the mean of its divisors is an integer number (12740000).

Almost surely, 2^609240852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609240852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917280000).

609240852 is an abundant number, since it is smaller than the sum of its proper divisors (1225319148).

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

609240852 is a wasteful number, since it uses less digits than its factorization.

609240852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3034 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 609240852 is about 24682.8047838976. The cubic root of 609240852 is about 847.7406443270.

The spelling of 609240852 in words is "six hundred nine million, two hundred forty thousand, eight hundred fifty-two".