253434434 has 32 divisors (see below), whose sum is σ = 426995712. Its totient is φ = 111826000.

The previous prime is 253434413. The next prime is 253434457. The reversal of 253434434 is 434434352.

It is a self number, because there is not a number n which added to its sum of digits gives 253434434.

It is an unprimeable number.

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, 134519 + ... + 136389.

It is an arithmetic number, because the mean of its divisors is an integer number (13343616).

Almost surely, 2^253434434 is an apocalyptic number.

253434434 is a deficient number, since it is larger than the sum of its proper divisors (173561278).

253434434 is a wasteful number, since it uses less digits than its factorization.

253434434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062.

The product of its digits is 69120, while the sum is 32.

The square root of 253434434 is about 15919.6241789811. The cubic root of 253434434 is about 632.8321586971.

Adding to 253434434 its reverse (434434352), we get a palindrome (687868786).

The spelling of 253434434 in words is "two hundred fifty-three million, four hundred thirty-four thousand, four hundred thirty-four".