253783280 has 40 divisors (see below), whose sum is σ = 593078112. Its totient is φ = 100991744.

The previous prime is 253783279. The next prime is 253783289. The reversal of 253783280 is 82387352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253783289) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7709 + ... + 23811.

Almost surely, 2^253783280 is an apocalyptic number.

253783280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253783280 is an abundant number, since it is smaller than the sum of its proper divisors (339294832).

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

253783280 is a wasteful number, since it uses less digits than its factorization.

253783280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16313 (or 16307 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 253783280 is about 15930.5768884871. The cubic root of 253783280 is about 633.1223846549.

The spelling of 253783280 in words is "two hundred fifty-three million, seven hundred eighty-three thousand, two hundred eighty".