2638822 has 4 divisors (see below), whose sum is σ = 3958236. Its totient is φ = 1319410.

The previous prime is 2638793. The next prime is 2638841. The reversal of 2638822 is 2288362.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659704 + ... + 659707.

It is an arithmetic number, because the mean of its divisors is an integer number (989559).

2^2638822 is an apocalyptic number.

2638822 is a deficient number, since it is larger than the sum of its proper divisors (1319414).

2638822 is a wasteful number, since it uses less digits than its factorization.

2638822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319413.

The product of its digits is 9216, while the sum is 31.

The square root of 2638822 is about 1624.4451360388. The cubic root of 2638822 is about 138.1879047779.

The spelling of 2638822 in words is "two million, six hundred thirty-eight thousand, eight hundred twenty-two".