253942 has 8 divisors (see below), whose sum is σ = 410256. Its totient is φ = 117192.

The previous prime is 253937. The next prime is 253949. The reversal of 253942 is 249352.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253949) by changing a digit.

253942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4858 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (51282).

2²⁵³⁹⁴² is an apocalyptic number.

253942 is a deficient number, since it is larger than the sum of its proper divisors (156314).

253942 is a wasteful number, since it uses less digits than its factorization.

253942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9782.

The product of its digits is 2160, while the sum is 25.

The square root of 253942 is about 503.9265819542. The cubic root of 253942 is about 63.3254345335.

The spelling of 253942 in words is "two hundred fifty-three thousand, nine hundred forty-two".