240244240 has 20 divisors (see below), whose sum is σ = 558568044. Its totient is φ = 96097664.

The previous prime is 240244237. The next prime is 240244243. The reversal of 240244240 is 42442042.

It is an interprime number because it is at equal distance from previous prime (240244237) and next prime (240244243).

It can be written as a sum of positive squares in 2 ways, for example, as 164762896 + 75481344 = 12836^2 + 8688^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (240244243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501447 + ... + 1501606.

Almost surely, 2^240244240 is an apocalyptic number.

240244240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240244240 is an abundant number, since it is smaller than the sum of its proper divisors (318323804).

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

240244240 is a wasteful number, since it uses less digits than its factorization.

240244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003066 (or 3003060 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 240244240 is about 15499.8141924347. The cubic root of 240244240 is about 621.6572381834.

Adding to 240244240 its reverse (42442042), we get a palindrome (282686282).

The spelling of 240244240 in words is "two hundred forty million, two hundred forty-four thousand, two hundred forty".