2638036 has 24 divisors (see below), whose sum is σ = 4921280. Its totient is φ = 1233792.

The previous prime is 2638003. The next prime is 2638039. The reversal of 2638036 is 6308362.

It is a d-powerful number, because it can be written as 2⁷ + 6⁴ + 3⁵ + 8⁷ + 0 + 3¹² + 6⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2637995 and 2638013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638039) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7660 + ... + 7996.

2^2638036 is an apocalyptic number.

It is an amenable number.

2638036 is a deficient number, since it is larger than the sum of its proper divisors (2283244).

2638036 is a wasteful number, since it uses less digits than its factorization.

2638036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2638036 is about 1624.2031892593. The cubic root of 2638036 is about 138.1741831906.

The spelling of 2638036 in words is "two million, six hundred thirty-eight thousand, thirty-six".