240202540 has 24 divisors (see below), whose sum is σ = 504967680. Its totient is φ = 95977728.

The previous prime is 240202499. The next prime is 240202549. The reversal of 240202540 is 45202042.

It is not an unprimeable number, because it can be changed into a prime (240202549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14229 + ... + 26131.

It is an arithmetic number, because the mean of its divisors is an integer number (21040320).

Almost surely, 2^240202540 is an apocalyptic number.

240202540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240202540 is an abundant number, since it is smaller than the sum of its proper divisors (264765140).

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

240202540 is a wasteful number, since it uses less digits than its factorization.

240202540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921 (or 12919 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 240202540 is about 15498.4689566421. The cubic root of 240202540 is about 621.6212683903.

Adding to 240202540 its reverse (45202042), we get a palindrome (285404582).

The spelling of 240202540 in words is "two hundred forty million, two hundred two thousand, five hundred forty".