253981832 has 16 divisors (see below), whose sum is σ = 512848140. Its totient is φ = 117222336.

The previous prime is 253981823. The next prime is 253981837. The reversal of 253981832 is 238189352.

It can be written as a sum of positive squares in 2 ways, for example, as 227828836 + 26152996 = 15094^2 + 5114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253981832.

It is not an unprimeable number, because it can be changed into a prime (253981837) 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 3 ways as a sum of consecutive naturals, for example, 1220963 + ... + 1221170.

Almost surely, 2^253981832 is an apocalyptic number.

It is an amenable number.

253981832 is an abundant number, since it is smaller than the sum of its proper divisors (258866308).

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

253981832 is a wasteful number, since it uses less digits than its factorization.

253981832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442152 (or 2442148 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 253981832 is about 15936.8074594631. The cubic root of 253981832 is about 633.2874532477.

The spelling of 253981832 in words is "two hundred fifty-three million, nine hundred eighty-one thousand, eight hundred thirty-two".