1813332 has 24 divisors (see below), whose sum is σ = 4265856. Its totient is φ = 599488.

The previous prime is 1813327. The next prime is 1813337. The reversal of 1813332 is 2333181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1813327) and next prime (1813337).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1813299 and 1813308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813337) 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, 1093 + ... + 2195.

It is an arithmetic number, because the mean of its divisors is an integer number (177744).

2^1813332 is an apocalyptic number.

1813332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1813332 is an abundant number, since it is smaller than the sum of its proper divisors (2452524).

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

1813332 is a wasteful number, since it uses less digits than its factorization.

1813332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1245 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 1813332 is about 1346.6001633744. The cubic root of 1813332 is about 121.9436270955.

It can be divided in two parts, 1813 and 332, that added together give a triangular number (2145 = T₆₅).

The spelling of 1813332 in words is "one million, eight hundred thirteen thousand, three hundred thirty-two".