2638106 has 4 divisors (see below), whose sum is σ = 3957162. Its totient is φ = 1319052.

The previous prime is 2638087. The next prime is 2638177. The reversal of 2638106 is 6018362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 312481 = 1525^2 + 559^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659525 + ... + 659528.

2^2638106 is an apocalyptic number.

2638106 is a deficient number, since it is larger than the sum of its proper divisors (1319056).

2638106 is a wasteful number, since it uses less digits than its factorization.

2638106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319055.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2638106 is about 1624.2247381443. The cubic root of 2638106 is about 138.1754053255.

It can be divided in two parts, 2638 and 106, that added together give a cube (2744 = 14³).

The spelling of 2638106 in words is "two million, six hundred thirty-eight thousand, one hundred six".