2638260 has 36 divisors (see below), whose sum is σ = 8003268. Its totient is φ = 703488.

The previous prime is 2638253. The next prime is 2638267. The reversal of 2638260 is 628362.

2638260 is a `hidden beast` number, since 2 + 638 + 26 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2638253) and next prime (2638267).

It can be written as a sum of positive squares in 2 ways, for example, as 2039184 + 599076 = 1428^2 + 774^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7149 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (222313).

2^2638260 is an apocalyptic number.

2638260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2638260 is an abundant number, since it is smaller than the sum of its proper divisors (5365008).

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

2638260 is a wasteful number, since it uses less digits than its factorization.

2638260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14672 (or 14667 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2638260 is about 1624.2721446851. The cubic root of 2638260 is about 138.1780939460.

The spelling of 2638260 in words is "two million, six hundred thirty-eight thousand, two hundred sixty".