253504044 has 72 divisors (see below), whose sum is σ = 655374720. Its totient is φ = 82598400.

The previous prime is 253504039. The next prime is 253504063. The reversal of 253504044 is 440405352.

253504044 is a `hidden beast` number, since 253 + 5 + 0 + 404 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 253503999 and 253504017.

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 23 ways as a sum of consecutive naturals, for example, 528997 + ... + 529475.

Almost surely, 2^253504044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253504044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327687360).

253504044 is an abundant number, since it is smaller than the sum of its proper divisors (401870676).

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

253504044 is a wasteful number, since it uses less digits than its factorization.

253504044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 253504044 is about 15921.8103242062. The cubic root of 253504044 is about 632.8900927004.

Adding to 253504044 its reverse (440405352), we get a palindrome (693909396).

The spelling of 253504044 in words is "two hundred fifty-three million, five hundred four thousand, forty-four".