240440001 has 16 divisors (see below), whose sum is σ = 323015040. Its totient is φ = 159084800.

The previous prime is 240439981. The next prime is 240440029. The reversal of 240440001 is 100044042.

It is a cyclic number.

It is not a de Polignac number, because 240440001 - 2¹⁸ = 240177857 is a prime.

It is a super-2 number, since 2×240440001² = 115622788161760002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240400001) 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 15 ways as a sum of consecutive naturals, for example, 323236 + ... + 323978.

It is an arithmetic number, because the mean of its divisors is an integer number (20188440).

Almost surely, 2^240440001 is an apocalyptic number.

It is an amenable number.

240440001 is a deficient number, since it is larger than the sum of its proper divisors (82575039).

240440001 is a wasteful number, since it uses less digits than its factorization.

240440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240440001 is about 15506.1278532069. The cubic root of 240440001 is about 621.8260430674.

Adding to 240440001 its reverse (100044042), we get a palindrome (340484043).

The spelling of 240440001 in words is "two hundred forty million, four hundred forty thousand, one".