2603648 has 16 divisors (see below), whose sum is σ = 5187210. Its totient is φ = 1301760.

The previous prime is 2603647. The next prime is 2603677. The reversal of 2603648 is 8463062.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 506944 = 1448^2 + 712^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2603648.

It is not an unprimeable number, because it can be changed into a prime (2603647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10043 + ... + 10298.

2^2603648 is an apocalyptic number.

It is an amenable number.

2603648 is a deficient number, since it is larger than the sum of its proper divisors (2583562).

2603648 is an equidigital number, since it uses as much as digits as its factorization.

2603648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20355 (or 20343 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2603648 is about 1613.5823499283. The cubic root of 2603648 is about 137.5711675663.

The spelling of 2603648 in words is "two million, six hundred three thousand, six hundred forty-eight".