240690693 has 4 divisors (see below), whose sum is σ = 320920928. Its totient is φ = 160460460.

The previous prime is 240690683. The next prime is 240690701. The reversal of 240690693 is 396096042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 240690693 - 2⁶ = 240690629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240690673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40115113 + ... + 40115118.

It is an arithmetic number, because the mean of its divisors is an integer number (80230232).

Almost surely, 2^240690693 is an apocalyptic number.

It is an amenable number.

240690693 is a deficient number, since it is larger than the sum of its proper divisors (80230235).

240690693 is an equidigital number, since it uses as much as digits as its factorization.

240690693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80230234.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 240690693 is about 15514.2093901043. The cubic root of 240690693 is about 622.0420812574.

The spelling of 240690693 in words is "two hundred forty million, six hundred ninety thousand, six hundred ninety-three".