240013433 has 4 divisors (see below), whose sum is σ = 261832848. Its totient is φ = 218194020.

The previous prime is 240013391. The next prime is 240013447. The reversal of 240013433 is 334310042.

240013433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 de Polignac number, because none of the positive numbers 2^k-240013433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240013493) 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, 10909691 + ... + 10909712.

It is an arithmetic number, because the mean of its divisors is an integer number (65458212).

Almost surely, 2^240013433 is an apocalyptic number.

It is an amenable number.

240013433 is a deficient number, since it is larger than the sum of its proper divisors (21819415).

240013433 is a wasteful number, since it uses less digits than its factorization.

240013433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819414.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 240013433 is about 15492.3669269741. The cubic root of 240013433 is about 621.4580952673.

Adding to 240013433 its reverse (334310042), we get a palindrome (574323475).

The spelling of 240013433 in words is "two hundred forty million, thirteen thousand, four hundred thirty-three".