253963140 has 48 divisors (see below), whose sum is σ = 723159360. Its totient is φ = 66574720.

The previous prime is 253963123. The next prime is 253963163. The reversal of 253963140 is 41369352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32331 + ... + 39410.

It is an arithmetic number, because the mean of its divisors is an integer number (15065820).

Almost surely, 2^253963140 is an apocalyptic number.

253963140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253963140 is an abundant number, since it is smaller than the sum of its proper divisors (469196220).

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

253963140 is a wasteful number, since it uses less digits than its factorization.

253963140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71812 (or 71810 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 253963140 is about 15936.2210075036. The cubic root of 253963140 is about 633.2719170977.

The spelling of 253963140 in words is "two hundred fifty-three million, nine hundred sixty-three thousand, one hundred forty".