240413240 has 32 divisors (see below), whose sum is σ = 542075760. Its totient is φ = 95961600.

The previous prime is 240413233. The next prime is 240413249. The reversal of 240413240 is 42314042.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240413249) 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, 13520 + ... + 25760.

Almost surely, 2^240413240 is an apocalyptic number.

240413240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240413240 is an abundant number, since it is smaller than the sum of its proper divisors (301662520).

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

240413240 is a wasteful number, since it uses less digits than its factorization.

240413240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12743 (or 12739 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 240413240 is about 15505.2649122806. The cubic root of 240413240 is about 621.8029724412.

Adding to 240413240 its reverse (42314042), we get a palindrome (282727282).

The spelling of 240413240 in words is "two hundred forty million, four hundred thirteen thousand, two hundred forty".