240405234 has 16 divisors (see below), whose sum is σ = 483498720. Its totient is φ = 79687040.

The previous prime is 240405229. The next prime is 240405251. The reversal of 240405234 is 432504042.

240405234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110847 + ... + 112994.

It is an arithmetic number, because the mean of its divisors is an integer number (30218670).

Almost surely, 2^240405234 is an apocalyptic number.

240405234 is an abundant number, since it is smaller than the sum of its proper divisors (243093486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240405234 is a wasteful number, since it uses less digits than its factorization.

240405234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224025.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 240405234 is about 15505.0067397599. The cubic root of 240405234 is about 621.7960701454.

Adding to 240405234 its reverse (432504042), we get a palindrome (672909276).

The spelling of 240405234 in words is "two hundred forty million, four hundred five thousand, two hundred thirty-four".