253320434 has 32 divisors (see below), whose sum is σ = 415259136. Its totient is φ = 115441920.

The previous prime is 253320421. The next prime is 253320449. The reversal of 253320434 is 434023352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138047 + ... + 139869.

It is an arithmetic number, because the mean of its divisors is an integer number (12976848).

Almost surely, 2^253320434 is an apocalyptic number.

253320434 is a deficient number, since it is larger than the sum of its proper divisors (161938702).

253320434 is a wasteful number, since it uses less digits than its factorization.

253320434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 253320434 is about 15916.0432897124. The cubic root of 253320434 is about 632.7372575100.

Adding to 253320434 its reverse (434023352), we get a palindrome (687343786).

The spelling of 253320434 in words is "two hundred fifty-three million, three hundred twenty thousand, four hundred thirty-four".