618253448 has 36 divisors (see below), whose sum is σ = 1187173365. Its totient is φ = 301847776.

The previous prime is 618253417. The next prime is 618253457. The reversal of 618253448 is 844352816.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 507961444 + 110292004 = 22538^2 + 10502^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17582.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 4149278 + ... + 4149426.

Almost surely, 2^618253448 is an apocalyptic number.

It is an amenable number.

618253448 is a deficient number, since it is larger than the sum of its proper divisors (568919917).

618253448 is an equidigital number, since it uses as much as digits as its factorization.

618253448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 210 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 618253448 is about 24864.7028536438. The cubic root of 618253448 is about 851.9004527099.

The spelling of 618253448 in words is "six hundred eighteen million, two hundred fifty-three thousand, four hundred forty-eight".