253431042 has 8 divisors (see below), whose sum is σ = 506862096. Its totient is φ = 84477012.

The previous prime is 253431011. The next prime is 253431047. The reversal of 253431042 is 240134352.

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

253431042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (253431047) 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, 21119248 + ... + 21119259.

It is an arithmetic number, because the mean of its divisors is an integer number (63357762).

Almost surely, 2^253431042 is an apocalyptic number.

253431042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

253431042 is a wasteful number, since it uses less digits than its factorization.

253431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42238512.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 253431042 is about 15919.5176434464. The cubic root of 253431042 is about 632.8293353814.

Adding to 253431042 its reverse (240134352), we get a palindrome (493565394).

It can be divided in two parts, 2534310 and 42, that added together give a palindrome (2534352).

The spelling of 253431042 in words is "two hundred fifty-three million, four hundred thirty-one thousand, forty-two".