1940224 has 72 divisors (see below), whose sum is σ = 4635792. Its totient is φ = 798720.

The previous prime is 1940221. The next prime is 1940233. The reversal of 1940224 is 4220491.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1940195 and 1940204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36582 + ... + 36634.

It is an arithmetic number, because the mean of its divisors is an integer number (64386).

2^1940224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2317896).

1940224 is an abundant number, since it is smaller than the sum of its proper divisors (2695568).

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

1940224 is a wasteful number, since it uses less digits than its factorization.

1940224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1940224 is about 1392.9192367112. The cubic root of 1940224 is about 124.7241704589.

The spelling of 1940224 in words is "one million, nine hundred forty thousand, two hundred twenty-four".