2638006 has 16 divisors (see below), whose sum is σ = 4597920. Its totient is φ = 1111680.

The previous prime is 2638003. The next prime is 2638039. The reversal of 2638006 is 6008362.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638003) 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, 691 + ... + 2398.

It is an arithmetic number, because the mean of its divisors is an integer number (287370).

2^2638006 is an apocalyptic number.

2638006 is a deficient number, since it is larger than the sum of its proper divisors (1959914).

2638006 is a wasteful number, since it uses less digits than its factorization.

2638006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2638006 is about 1624.1939539353. The cubic root of 2638006 is about 138.1736594119.

The spelling of 2638006 in words is "two million, six hundred thirty-eight thousand, six".