248449664 has 16 divisors (see below), whose sum is σ = 494958570. Its totient is φ = 124224768.

The previous prime is 248449651. The next prime is 248449667. The reversal of 248449664 is 466944842.

It can be written as a sum of positive squares in only one way, i.e., 243609664 + 4840000 = 15608^2 + 2200^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (248449667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970379 + ... + 970634.

Almost surely, 2^248449664 is an apocalyptic number.

It is an amenable number.

248449664 is a deficient number, since it is larger than the sum of its proper divisors (246508906).

248449664 is an equidigital number, since it uses as much as digits as its factorization.

248449664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941027 (or 1941015 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 248449664 is about 15762.2861286046. The cubic root of 248449664 is about 628.6556231966.

The spelling of 248449664 in words is "two hundred forty-eight million, four hundred forty-nine thousand, six hundred sixty-four".