609143040 has 648 divisors, whose sum is σ = 2544534720. Its totient is φ = 133816320.

The previous prime is 609143039. The next prime is 609143053. The reversal of 609143040 is 40341906.

609143040 is a `hidden beast` number, since 609 + 14 + 3 + 0 + 40 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 609142995 and 609143013.

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, 26484469 + ... + 26484491.

Almost surely, 2^609143040 is an apocalyptic number.

609143040 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 609143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272267360).

609143040 is an abundant number, since it is smaller than the sum of its proper divisors (1935391680).

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

609143040 is a wasteful number, since it uses less digits than its factorization.

609143040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 609143040 is about 24680.8233250028. The cubic root of 609143040 is about 847.6952743963.

Adding to 609143040 its reverse (40341906), we get a palindrome (649484946).

The spelling of 609143040 in words is "six hundred nine million, one hundred forty-three thousand, forty".