1922238 has 16 divisors (see below), whose sum is σ = 4271760. Its totient is φ = 640728.

The previous prime is 1922233. The next prime is 1922269. The reversal of 1922238 is 8322291.

It is a happy number.

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 (1922233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17745 + ... + 17852.

It is an arithmetic number, because the mean of its divisors is an integer number (266985).

2^1922238 is an apocalyptic number.

1922238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1922238 is an abundant number, since it is smaller than the sum of its proper divisors (2349522).

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

1922238 is a wasteful number, since it uses less digits than its factorization.

1922238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35608 (or 35602 counting only the distinct ones).

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

The square root of 1922238 is about 1386.4479795506. The cubic root of 1922238 is about 124.3375730589.

The spelling of 1922238 in words is "one million, nine hundred twenty-two thousand, two hundred thirty-eight".