1820352 has 56 divisors (see below), whose sum is σ = 5080000. Its totient is φ = 573696.

The previous prime is 1820347. The next prime is 1820353. The reversal of 1820352 is 2530281.

It is not an unprimeable number, because it can be changed into a prime (1820353) 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, 3399 + ... + 3897.

2^1820352 is an apocalyptic number.

1820352 is a gapful number since it is divisible by the number (12) 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 1820352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540000).

1820352 is an abundant number, since it is smaller than the sum of its proper divisors (3259648).

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

1820352 is a wasteful number, since it uses less digits than its factorization.

1820352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1820352 is about 1349.2042098956. The cubic root of 1820352 is about 122.1007856589.

The spelling of 1820352 in words is "one million, eight hundred twenty thousand, three hundred fifty-two".