1993022 has 4 divisors (see below), whose sum is σ = 2989536. Its totient is φ = 996510.

The previous prime is 1992983. The next prime is 1993031. The reversal of 1993022 is 2203991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2203991 = 61 ⋅36131.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1992982 and 1993000.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 498254 + ... + 498257.

It is an arithmetic number, because the mean of its divisors is an integer number (747384).

2^1993022 is an apocalyptic number.

1993022 is a deficient number, since it is larger than the sum of its proper divisors (996514).

1993022 is an equidigital number, since it uses as much as digits as its factorization.

1993022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996513.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1993022 is about 1411.7443111272. The cubic root of 1993022 is about 125.8454054273.

The spelling of 1993022 in words is "one million, nine hundred ninety-three thousand, twenty-two".