253044630 has 48 divisors (see below), whose sum is σ = 679146624. Its totient is φ = 65301120.

The previous prime is 253044607. The next prime is 253044647. The reversal of 253044630 is 36440352.

253044630 is a `hidden beast` number, since 25 + 3 + 0 + 4 + 4 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 253044594 and 253044603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42559 + ... + 48138.

It is an arithmetic number, because the mean of its divisors is an integer number (14148888).

Almost surely, 2^253044630 is an apocalyptic number.

253044630 is an abundant number, since it is smaller than the sum of its proper divisors (426101994).

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

253044630 is a wasteful number, since it uses less digits than its factorization.

253044630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90741 (or 90738 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 253044630 is about 15907.3765907519. The cubic root of 253044630 is about 632.5075420786.

Adding to 253044630 its reverse (36440352), we get a palindrome (289484982).

The spelling of 253044630 in words is "two hundred fifty-three million, forty-four thousand, six hundred thirty".