240743645 has 32 divisors (see below), whose sum is σ = 320440320. Its totient is φ = 172972800.

The previous prime is 240743641. The next prime is 240743669. The reversal of 240743645 is 546347042.

It is not a de Polignac number, because 240743645 - 2² = 240743641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240743641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122420 + ... + 124370.

It is an arithmetic number, because the mean of its divisors is an integer number (10013760).

Almost surely, 2^240743645 is an apocalyptic number.

It is an amenable number.

240743645 is a deficient number, since it is larger than the sum of its proper divisors (79696675).

240743645 is a wasteful number, since it uses less digits than its factorization.

240743645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 240743645 is about 15515.9158608185. The cubic root of 240743645 is about 622.0876943728.

The spelling of 240743645 in words is "two hundred forty million, seven hundred forty-three thousand, six hundred forty-five".