240315389 has 4 divisors (see below), whose sum is σ = 240368256. Its totient is φ = 240262524.

The previous prime is 240315359. The next prime is 240315421. The reversal of 240315389 is 983513042.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240315389 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 (240315359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18899 + ... + 28944.

It is an arithmetic number, because the mean of its divisors is an integer number (60092064).

Almost surely, 2^240315389 is an apocalyptic number.

It is an amenable number.

240315389 is a deficient number, since it is larger than the sum of its proper divisors (52867).

240315389 is an equidigital number, since it uses as much as digits as its factorization.

240315389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52866.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 240315389 is about 15502.1091790762. The cubic root of 240315389 is about 621.7186006330.

The spelling of 240315389 in words is "two hundred forty million, three hundred fifteen thousand, three hundred eighty-nine".