1822260 has 72 divisors (see below), whose sum is σ = 5630688. Its totient is φ = 440000.

The previous prime is 1822259. The next prime is 1822277. The reversal of 1822260 is 622281.

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, 7135 + ... + 7385.

It is an arithmetic number, because the mean of its divisors is an integer number (78204).

2^1822260 is an apocalyptic number.

1822260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1822260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2815344).

1822260 is an abundant number, since it is smaller than the sum of its proper divisors (3808428).

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

1822260 is a wasteful number, since it uses less digits than its factorization.

1822260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1822260 is about 1349.9111081845. The cubic root of 1822260 is about 122.1434306988.

Adding to 1822260 its sum of digits (21), we get a palindrome (1822281).

It can be divided in two parts, 182 and 2260, that added together give a palindrome (2442).

The spelling of 1822260 in words is "one million, eight hundred twenty-two thousand, two hundred sixty".