240538563 has 12 divisors (see below), whose sum is σ = 351027768. Its totient is φ = 158705280.

The previous prime is 240538547. The next prime is 240538619. The reversal of 240538563 is 365835042.

It is a happy number.

240538563 is a `hidden beast` number, since 2 + 40 + 53 + 8 + 563 = 666.

It is not a de Polignac number, because 240538563 - 2⁴ = 240538547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240548563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136893 + ... + 138638.

It is an arithmetic number, because the mean of its divisors is an integer number (29252314).

Almost surely, 2^240538563 is an apocalyptic number.

240538563 is a deficient number, since it is larger than the sum of its proper divisors (110489205).

240538563 is a wasteful number, since it uses less digits than its factorization.

240538563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275634 (or 275631 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 240538563 is about 15509.3056904556. The cubic root of 240538563 is about 621.9109984902.

The spelling of 240538563 in words is "two hundred forty million, five hundred thirty-eight thousand, five hundred sixty-three".