240012440 has 32 divisors (see below), whose sum is σ = 540540000. Its totient is φ = 95913984.

The previous prime is 240012431. The next prime is 240012457. The reversal of 240012440 is 44210042.

It is a congruent number.

It is an unprimeable number.

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, 53816 + ... + 58104.

It is an arithmetic number, because the mean of its divisors is an integer number (16891875).

Almost surely, 2^240012440 is an apocalyptic number.

240012440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240012440 is an abundant number, since it is smaller than the sum of its proper divisors (300527560).

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

240012440 is a wasteful number, since it uses less digits than its factorization.

240012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699 (or 5695 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 240012440 is about 15492.3348789006. The cubic root of 240012440 is about 621.4572382198.

Adding to 240012440 its reverse (44210042), we get a palindrome (284222482).

The spelling of 240012440 in words is "two hundred forty million, twelve thousand, four hundred forty".