240244040 has 32 divisors (see below), whose sum is σ = 541442880. Its totient is φ = 95938752.

The previous prime is 240244031. The next prime is 240244063. The reversal of 240244040 is 40442042.

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

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, 21239 + ... + 30521.

It is an arithmetic number, because the mean of its divisors is an integer number (16920090).

Almost surely, 2^240244040 is an apocalyptic number.

240244040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240244040 is an abundant number, since it is smaller than the sum of its proper divisors (301198840).

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

240244040 is a wasteful number, since it uses less digits than its factorization.

240244040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941 (or 9937 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 240244040 is about 15499.8077407431. The cubic root of 240244040 is about 621.6570656763.

Adding to 240244040 its reverse (40442042), we get a palindrome (280686082).

The spelling of 240244040 in words is "two hundred forty million, two hundred forty-four thousand, forty".