253421334 has 24 divisors (see below), whose sum is σ = 553276152. Its totient is φ = 83828160.

The previous prime is 253421323. The next prime is 253421341. The reversal of 253421334 is 433124352.

It is a junction number, because it is equal to n+sod(n) for n = 253421298 and 253421307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51379 + ... + 56094.

It is an arithmetic number, because the mean of its divisors is an integer number (23053173).

Almost surely, 2^253421334 is an apocalyptic number.

253421334 is an abundant number, since it is smaller than the sum of its proper divisors (299854818).

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

253421334 is a wasteful number, since it uses less digits than its factorization.

253421334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107612 (or 107609 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 253421334 is about 15919.2127317905. The cubic root of 253421334 is about 632.8212548327.

Adding to 253421334 its reverse (433124352), we get a palindrome (686545686).

The spelling of 253421334 in words is "two hundred fifty-three million, four hundred twenty-one thousand, three hundred thirty-four".