204152540240 has 40 divisors (see below), whose sum is σ = 517805081568. Its totient is φ = 74237287040.

The previous prime is 204152540219. The next prime is 204152540281. The reversal of 204152540240 is 42045251402.

204152540240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115994882 + ... + 115996641.

Almost surely, 2^204152540240 is an apocalyptic number.

204152540240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204152540240 is an abundant number, since it is smaller than the sum of its proper divisors (313652541328).

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

204152540240 is a wasteful number, since it uses less digits than its factorization.

204152540240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231991547 (or 231991541 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 204152540240 its reverse (42045251402), we get a palindrome (246197791642).

The spelling of 204152540240 in words is "two hundred four billion, one hundred fifty-two million, five hundred forty thousand, two hundred forty".