240563540 has 36 divisors (see below), whose sum is σ = 587664756. Its totient is φ = 82478592.

The previous prime is 240563539. The next prime is 240563551. The reversal of 240563540 is 45365042.

It can be written as a sum of positive squares in 2 ways, for example, as 45346756 + 195216784 = 6734^2 + 13972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121757 + ... + 123716.

It is an arithmetic number, because the mean of its divisors is an integer number (16324021).

Almost surely, 2^240563540 is an apocalyptic number.

240563540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240563540 is an abundant number, since it is smaller than the sum of its proper divisors (347101216).

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

240563540 is a wasteful number, since it uses less digits than its factorization.

240563540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245496 (or 245487 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 240563540 is about 15510.1108957996. The cubic root of 240563540 is about 621.9325237059.

The spelling of 240563540 in words is "two hundred forty million, five hundred sixty-three thousand, five hundred forty".