1238922 has 16 divisors (see below), whose sum is σ = 2753280. Its totient is φ = 412956.

The previous prime is 1238921. The next prime is 1238947. The reversal of 1238922 is 2298321.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1238921) 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, 11418 + ... + 11525.

It is an arithmetic number, because the mean of its divisors is an integer number (172080).

2^1238922 is an apocalyptic number.

1238922 is an abundant number, since it is smaller than the sum of its proper divisors (1514358).

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

1238922 is a wasteful number, since it uses less digits than its factorization.

1238922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22954 (or 22948 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1238922 is about 1113.0687310315. The cubic root of 1238922 is about 107.4025654017.

It can be divided in two parts, 123 and 8922, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 1238922 in words is "one million, two hundred thirty-eight thousand, nine hundred twenty-two".