2638235 has 8 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 2104384.

The previous prime is 2638231. The next prime is 2638243. The reversal of 2638235 is 5328362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2638235 - 2² = 2638231 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 3⁸ + 8³ + 2²¹ + 3⁸ + 5⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2638198 and 2638207.

It is not an unprimeable number, because it can be changed into a prime (2638231) 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, 1991 + ... + 3039.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

2^2638235 is an apocalyptic number.

2638235 is a deficient number, since it is larger than the sum of its proper divisors (536965).

2638235 is a wasteful number, since it uses less digits than its factorization.

2638235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557.

The product of its digits is 8640, while the sum is 29.

The square root of 2638235 is about 1624.2644489122. The cubic root of 2638235 is about 138.1776574888.

The spelling of 2638235 in words is "two million, six hundred thirty-eight thousand, two hundred thirty-five".