240545240 has 64 divisors (see below), whose sum is σ = 617168160. Its totient is φ = 83589120.

The previous prime is 240545203. The next prime is 240545267. The reversal of 240545240 is 42545042.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4766 + ... + 22445.

Almost surely, 2^240545240 is an apocalyptic number.

240545240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240545240 is an abundant number, since it is smaller than the sum of its proper divisors (376622920).

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

240545240 is a wasteful number, since it uses less digits than its factorization.

240545240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27252 (or 27248 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 240545240 is about 15509.5209468249. The cubic root of 240545240 is about 621.9167528846.

The spelling of 240545240 in words is "two hundred forty million, five hundred forty-five thousand, two hundred forty".