253940634 has 48 divisors (see below), whose sum is σ = 567350784. Its totient is φ = 82036800.

The previous prime is 253940627. The next prime is 253940651. The reversal of 253940634 is 436049352.

253940634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119239 + ... + 121349.

It is an arithmetic number, because the mean of its divisors is an integer number (11819808).

Almost surely, 2^253940634 is an apocalyptic number.

253940634 is an abundant number, since it is smaller than the sum of its proper divisors (313410150).

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

253940634 is a wasteful number, since it uses less digits than its factorization.

253940634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 253940634 is about 15935.5148646035. The cubic root of 253940634 is about 633.2532098701.

Adding to 253940634 its reverse (436049352), we get a palindrome (689989986).

The spelling of 253940634 in words is "two hundred fifty-three million, nine hundred forty thousand, six hundred thirty-four".