240140238 has 16 divisors (see below), whose sum is σ = 517225296. Its totient is φ = 73889280.

The previous prime is 240140237. The next prime is 240140279. The reversal of 240140238 is 832041042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240140231) 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, 1539283 + ... + 1539438.

It is an arithmetic number, because the mean of its divisors is an integer number (32326581).

Almost surely, 2^240140238 is an apocalyptic number.

240140238 is an abundant number, since it is smaller than the sum of its proper divisors (277085058).

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

240140238 is a wasteful number, since it uses less digits than its factorization.

240140238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078739.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 240140238 is about 15496.4588858229. The cubic root of 240140238 is about 621.5675198647.

The spelling of 240140238 in words is "two hundred forty million, one hundred forty thousand, two hundred thirty-eight".