253430294 has 16 divisors (see below), whose sum is σ = 409655232. Its totient is φ = 116891328.

The previous prime is 253430293. The next prime is 253430297. The reversal of 253430294 is 492034352.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253430294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253430293) 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 7 ways as a sum of consecutive naturals, for example, 64202 + ... + 68034.

It is an arithmetic number, because the mean of its divisors is an integer number (25603452).

Almost surely, 2^253430294 is an apocalyptic number.

253430294 is a deficient number, since it is larger than the sum of its proper divisors (156224938).

253430294 is a wasteful number, since it uses less digits than its factorization.

253430294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 253430294 is about 15919.4941502549. The cubic root of 253430294 is about 632.8287127836.

The spelling of 253430294 in words is "two hundred fifty-three million, four hundred thirty thousand, two hundred ninety-four".