240433221 has 16 divisors (see below), whose sum is σ = 370154624. Its totient is φ = 135972864.

The previous prime is 240433213. The next prime is 240433231. The reversal of 240433221 is 122334042.

It is not a de Polignac number, because 240433221 - 2³ = 240433213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240433211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56980 + ... + 61053.

It is an arithmetic number, because the mean of its divisors is an integer number (23134664).

Almost surely, 2^240433221 is an apocalyptic number.

240433221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240433221 is a deficient number, since it is larger than the sum of its proper divisors (129721403).

240433221 is a wasteful number, since it uses less digits than its factorization.

240433221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118140.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240433221 is about 15505.9092284200. The cubic root of 240433221 is about 621.8201981994.

Adding to 240433221 its reverse (122334042), we get a palindrome (362767263).

The spelling of 240433221 in words is "two hundred forty million, four hundred thirty-three thousand, two hundred twenty-one".