253448646 has 32 divisors (see below), whose sum is σ = 553564800. Its totient is φ = 76721280.

The previous prime is 253448641. The next prime is 253448659. The reversal of 253448646 is 646844352.

It is a junction number, because it is equal to n+sod(n) for n = 253448598 and 253448607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253448641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96985 + ... + 99563.

It is an arithmetic number, because the mean of its divisors is an integer number (17298900).

Almost surely, 2^253448646 is an apocalyptic number.

253448646 is an abundant number, since it is smaller than the sum of its proper divisors (300116154).

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

253448646 is a wasteful number, since it uses less digits than its factorization.

253448646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084.

The product of its digits is 552960, while the sum is 42.

The square root of 253448646 is about 15920.0705400447. The cubic root of 253448646 is about 632.8439877165.

The spelling of 253448646 in words is "two hundred fifty-three million, four hundred forty-eight thousand, six hundred forty-six".