240144009 has 32 divisors (see below), whose sum is σ = 375238656. Its totient is φ = 133760640.

The previous prime is 240144001. The next prime is 240144019. The reversal of 240144009 is 900441042.

It is not a de Polignac number, because 240144009 - 2³ = 240144001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240144009.

It is not an unprimeable number, because it can be changed into a prime (240144001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460669 + ... + 461189.

It is an arithmetic number, because the mean of its divisors is an integer number (11726208).

Almost surely, 2^240144009 is an apocalyptic number.

It is an amenable number.

240144009 is a deficient number, since it is larger than the sum of its proper divisors (135094647).

240144009 is a wasteful number, since it uses less digits than its factorization.

240144009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 240144009 is about 15496.5805583038. The cubic root of 240144009 is about 621.5707734064.

The spelling of 240144009 in words is "two hundred forty million, one hundred forty-four thousand, nine".