1813196 has 54 divisors (see below), whose sum is σ = 4170348. Its totient is φ = 682080.

The previous prime is 1813177. The next prime is 1813211. The reversal of 1813196 is 6913181.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62510 + ... + 62538.

2^1813196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1813196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2085174).

1813196 is an abundant number, since it is smaller than the sum of its proper divisors (2357152).

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

1813196 is a wasteful number, since it uses less digits than its factorization.

1813196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 49 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1813196 is about 1346.5496648843. The cubic root of 1813196 is about 121.9405784263.

The spelling of 1813196 in words is "one million, eight hundred thirteen thousand, one hundred ninety-six".