240345403 has 4 divisors (see below), whose sum is σ = 246207528. Its totient is φ = 234483280.

The previous prime is 240345401. The next prime is 240345431. The reversal of 240345403 is 304543042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240345403 - 2¹ = 240345401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240345401) 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, 2931001 + ... + 2931082.

It is an arithmetic number, because the mean of its divisors is an integer number (61551882).

Almost surely, 2^240345403 is an apocalyptic number.

240345403 is a deficient number, since it is larger than the sum of its proper divisors (5862125).

240345403 is an equidigital number, since it uses as much as digits as its factorization.

240345403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862124.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 240345403 is about 15503.0772106701. The cubic root of 240345403 is about 621.7444825728.

Adding to 240345403 its reverse (304543042), we get a palindrome (544888445).

The spelling of 240345403 in words is "two hundred forty million, three hundred forty-five thousand, four hundred three".