253221234 has 32 divisors (see below), whose sum is σ = 579833856. Its totient is φ = 72218640.

The previous prime is 253221223. The next prime is 253221247. The reversal of 253221234 is 432122352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19519 + ... + 29789.

It is an arithmetic number, because the mean of its divisors is an integer number (18119808).

Almost surely, 2^253221234 is an apocalyptic number.

253221234 is an abundant number, since it is smaller than the sum of its proper divisors (326612622).

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

253221234 is a wasteful number, since it uses less digits than its factorization.

253221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870.

The product of its digits is 2880, while the sum is 24.

The square root of 253221234 is about 15912.9266321441. The cubic root of 253221234 is about 632.6546536580.

Adding to 253221234 its reverse (432122352), we get a palindrome (685343586).

The spelling of 253221234 in words is "two hundred fifty-three million, two hundred twenty-one thousand, two hundred thirty-four".