1920022 has 8 divisors (see below), whose sum is σ = 3101616. Its totient is φ = 886152.

The previous prime is 1920013. The next prime is 1920043. The reversal of 1920022 is 2200291.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1919978 and 1920005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36898 + ... + 36949.

It is an arithmetic number, because the mean of its divisors is an integer number (387702).

2^1920022 is an apocalyptic number.

1920022 is a deficient number, since it is larger than the sum of its proper divisors (1181594).

1920022 is a wasteful number, since it uses less digits than its factorization.

1920022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73862.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1920022 is about 1385.6485845986. The cubic root of 1920022 is about 124.2897749524.

The spelling of 1920022 in words is "one million, nine hundred twenty thousand, twenty-two".