1933220 has 12 divisors (see below), whose sum is σ = 4059804. Its totient is φ = 773280.

The previous prime is 1933199. The next prime is 1933229. The reversal of 1933220 is 223391.

It can be written as a sum of positive squares in 2 ways, for example, as 1240996 + 692224 = 1114^2 + 832^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 96661 = 1933220 / (1 + 9 + 3 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1933192 and 1933201.

It is not an unprimeable number, because it can be changed into a prime (1933229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48311 + ... + 48350.

It is an arithmetic number, because the mean of its divisors is an integer number (338317).

2^1933220 is an apocalyptic number.

1933220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1933220 is an abundant number, since it is smaller than the sum of its proper divisors (2126584).

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

1933220 is a wasteful number, since it uses less digits than its factorization.

1933220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96670 (or 96668 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1933220 is about 1390.4028193297. The cubic root of 1933220 is about 124.5739092235.

The spelling of 1933220 in words is "one million, nine hundred thirty-three thousand, two hundred twenty".