240344040 has 32 divisors (see below), whose sum is σ = 721032480. Its totient is φ = 64091712.

The previous prime is 240344021. The next prime is 240344047. The reversal of 240344040 is 40443042.

It is a junction number, because it is equal to n+sod(n) for n = 240343998 and 240344016.

It is not an unprimeable number, because it can be changed into a prime (240344047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001314 + ... + 1001553.

It is an arithmetic number, because the mean of its divisors is an integer number (22532265).

Almost surely, 2^240344040 is an apocalyptic number.

240344040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240344040 is an abundant number, since it is smaller than the sum of its proper divisors (480688440).

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

240344040 is a wasteful number, since it uses less digits than its factorization.

240344040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002881 (or 2002877 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240344040 is about 15503.0332515931. The cubic root of 240344040 is about 621.7433072652.

Adding to 240344040 its reverse (40443042), we get a palindrome (280787082).

The spelling of 240344040 in words is "two hundred forty million, three hundred forty-four thousand, forty".