253869942 has 64 divisors (see below), whose sum is σ = 550416384. Its totient is φ = 77775360.

The previous prime is 253869911. The next prime is 253869949. The reversal of 253869942 is 249968352.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 253869891 and 253869900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253869949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1329067 + ... + 1329257.

It is an arithmetic number, because the mean of its divisors is an integer number (8600256).

Almost surely, 2^253869942 is an apocalyptic number.

253869942 is an abundant number, since it is smaller than the sum of its proper divisors (296546442).

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

253869942 is a wasteful number, since it uses less digits than its factorization.

253869942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453.

The product of its digits is 933120, while the sum is 48.

The square root of 253869942 is about 15933.2966457039. The cubic root of 253869942 is about 633.1944427351.

The spelling of 253869942 in words is "two hundred fifty-three million, eight hundred sixty-nine thousand, nine hundred forty-two".