1338822 has 16 divisors (see below), whose sum is σ = 2975280. Its totient is φ = 446256.

The previous prime is 1338811. The next prime is 1338823. The reversal of 1338822 is 2288331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12343 + ... + 12450.

It is an arithmetic number, because the mean of its divisors is an integer number (185955).

2^1338822 is an apocalyptic number.

1338822 is an abundant number, since it is smaller than the sum of its proper divisors (1636458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1338822 is a wasteful number, since it uses less digits than its factorization.

1338822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804 (or 24798 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1338822 is about 1157.0747599010. The cubic root of 1338822 is about 110.2150613525.

The spelling of 1338822 in words is "one million, three hundred thirty-eight thousand, eight hundred twenty-two".