240189393 has 16 divisors (see below), whose sum is σ = 337774400. Its totient is φ = 151398720.

The previous prime is 240189377. The next prime is 240189419. The reversal of 240189393 is 393981042.

It is not a de Polignac number, because 240189393 - 2⁴ = 240189377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240189493) 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 15 ways as a sum of consecutive naturals, for example, 26943 + ... + 34731.

It is an arithmetic number, because the mean of its divisors is an integer number (21110900).

Almost surely, 2^240189393 is an apocalyptic number.

It is an amenable number.

240189393 is a deficient number, since it is larger than the sum of its proper divisors (97585007).

240189393 is a wasteful number, since it uses less digits than its factorization.

240189393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 240189393 is about 15498.0448121690. The cubic root of 240189393 is about 621.6099271226.

It can be divided in two parts, 24018 and 9393, that added together give a triangular number (33411 = T₂₅₈).

The spelling of 240189393 in words is "two hundred forty million, one hundred eighty-nine thousand, three hundred ninety-three".