2608638 has 16 divisors (see below), whose sum is σ = 5339136. Its totient is φ = 849240.

The previous prime is 2608631. The next prime is 2608649. The reversal of 2608638 is 8368062.

It is a junction number, because it is equal to n+sod(n) for n = 2608599 and 2608608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2608631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 5313.

It is an arithmetic number, because the mean of its divisors is an integer number (333696).

2^2608638 is an apocalyptic number.

2608638 is an abundant number, since it is smaller than the sum of its proper divisors (2730498).

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

2608638 is a wasteful number, since it uses less digits than its factorization.

2608638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10159.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2608638 is about 1615.1278587158. The cubic root of 2608638 is about 137.6589984401.

The spelling of 2608638 in words is "two million, six hundred eight thousand, six hundred thirty-eight".