253082840 has 32 divisors (see below), whose sum is σ = 573605280. Its totient is φ = 100492032.

The previous prime is 253082813. The next prime is 253082861. The reversal of 253082840 is 48280352.

It is a junction number, because it is equal to n+sod(n) for n = 253082797 and 253082806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17612 + ... + 28571.

It is an arithmetic number, because the mean of its divisors is an integer number (17925165).

Almost surely, 2^253082840 is an apocalyptic number.

253082840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253082840 is an abundant number, since it is smaller than the sum of its proper divisors (320522440).

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

253082840 is a wasteful number, since it uses less digits than its factorization.

253082840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46331 (or 46327 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 253082840 is about 15908.5775605489. The cubic root of 253082840 is about 632.5393769066.

The spelling of 253082840 in words is "two hundred fifty-three million, eighty-two thousand, eight hundred forty".