253032040 has 32 divisors (see below), whose sum is σ = 570050280. Its totient is φ = 101083392.

The previous prime is 253032007. The next prime is 253032041. The reversal of 253032040 is 40230352.

It can be written as a sum of positive squares in 4 ways, for example, as 250715556 + 2316484 = 15834^2 + 1522^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253031999 and 253032017.

It is not an unprimeable number, because it can be changed into a prime (253032041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31474 + ... + 38686.

Almost surely, 2^253032040 is an apocalyptic number.

253032040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253032040 is an abundant number, since it is smaller than the sum of its proper divisors (317018240).

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

253032040 is a wasteful number, since it uses less digits than its factorization.

253032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 253032040 is about 15906.9808574726. The cubic root of 253032040 is about 632.4970519633.

Adding to 253032040 its reverse (40230352), we get a palindrome (293262392).

The spelling of 253032040 in words is "two hundred fifty-three million, thirty-two thousand, forty".