609161472 has 180 divisors, whose sum is σ = 1880899020. Its totient is φ = 195858432.

The previous prime is 609161471. The next prime is 609161519. The reversal of 609161472 is 274161906.

609161472 is a `hidden beast` number, since 609 + 1 + 6 + 1 + 47 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 104530176 + 504631296 = 10224^2 + 22464^2 .

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

It is not an unprimeable number, because it can be changed into a prime (609161471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 600838 + ... + 601850.

It is an arithmetic number, because the mean of its divisors is an integer number (10449439).

Almost surely, 2^609161472 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 609161472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940449510).

609161472 is an abundant number, since it is smaller than the sum of its proper divisors (1271737548).

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

609161472 is a wasteful number, since it uses less digits than its factorization.

609161472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 609161472 is about 24681.1967294943. The cubic root of 609161472 is about 847.7038244196.

The spelling of 609161472 in words is "six hundred nine million, one hundred sixty-one thousand, four hundred seventy-two".