240304023 has 16 divisors (see below), whose sum is σ = 371485440. Its totient is φ = 153236952.

The previous prime is 240304019. The next prime is 240304037. The reversal of 240304023 is 320403042.

It is not a de Polignac number, because 240304023 - 2² = 240304019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240303987 and 240304005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240304013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192861 + ... + 194102.

It is an arithmetic number, because the mean of its divisors is an integer number (23217840).

Almost surely, 2^240304023 is an apocalyptic number.

240304023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

240304023 is a deficient number, since it is larger than the sum of its proper divisors (131181417).

240304023 is a wasteful number, since it uses less digits than its factorization.

240304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386995 (or 386989 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 240304023 is about 15501.7425794651. The cubic root of 240304023 is about 621.7087988401.

Adding to 240304023 its reverse (320403042), we get a palindrome (560707065).

The spelling of 240304023 in words is "two hundred forty million, three hundred four thousand, twenty-three".