1822320 has 60 divisors (see below), whose sum is σ = 6122376. Its totient is φ = 485760.

The previous prime is 1822319. The next prime is 1822321. The reversal of 1822320 is 232281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1822319) and next prime (1822321).

It is a tau number, because it is divible by the number of its divisors (60).

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 = 1822293 and 1822302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546 + ... + 1985.

2^1822320 is an apocalyptic number.

1822320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1822320 is an abundant number, since it is smaller than the sum of its proper divisors (4300056).

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

1822320 is a wasteful number, since it uses less digits than its factorization.

1822320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1822320 is about 1349.9333316872. The cubic root of 1822320 is about 122.1447712549.

The spelling of 1822320 in words is "one million, eight hundred twenty-two thousand, three hundred twenty".