253994 has 8 divisors (see below), whose sum is σ = 410340. Its totient is φ = 117216.

The previous prime is 253993. The next prime is 253999. The reversal of 253994 is 499352.

253994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 18769 = 485^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253994.

It is not an unprimeable number, because it can be changed into a prime (253993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 4910.

2²⁵³⁹⁹⁴ is an apocalyptic number.

253994 is a deficient number, since it is larger than the sum of its proper divisors (156346).

253994 is a wasteful number, since it uses less digits than its factorization.

253994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784.

The product of its digits is 9720, while the sum is 32.

The square root of 253994 is about 503.9781741306. The cubic root of 253994 is about 63.3297566463.

The spelling of 253994 in words is "two hundred fifty-three thousand, nine hundred ninety-four".