240637345 has 32 divisors (see below), whose sum is σ = 322882560. Its totient is φ = 170968320.

The previous prime is 240637343. The next prime is 240637351. The reversal of 240637345 is 543736042.

It is not a de Polignac number, because 240637345 - 2¹ = 240637343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240637345.

It is not an unprimeable number, because it can be changed into a prime (240637343) 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, 618411 + ... + 618799.

It is an arithmetic number, because the mean of its divisors is an integer number (10090080).

Almost surely, 2^240637345 is an apocalyptic number.

It is an amenable number.

240637345 is a deficient number, since it is larger than the sum of its proper divisors (82245215).

240637345 is a wasteful number, since it uses less digits than its factorization.

240637345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 240637345 is about 15512.4899677647. The cubic root of 240637345 is about 621.9961202599.

The spelling of 240637345 in words is "two hundred forty million, six hundred thirty-seven thousand, three hundred forty-five".