1940022 has 48 divisors (see below), whose sum is σ = 4885920. Its totient is φ = 544896.

The previous prime is 1939999. The next prime is 1940041. The reversal of 1940022 is 2200491.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1939977 and 1940004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11128 + ... + 11300.

It is an arithmetic number, because the mean of its divisors is an integer number (101790).

2^1940022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442960).

1940022 is an abundant number, since it is smaller than the sum of its proper divisors (2945898).

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

1940022 is a wasteful number, since it uses less digits than its factorization.

1940022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1940022 is about 1392.8467252358. The cubic root of 1940022 is about 124.7198418939.

The spelling of 1940022 in words is "one million, nine hundred forty thousand, twenty-two".