1812996 has 24 divisors (see below), whose sum is σ = 4700640. Its totient is φ = 604296.

The previous prime is 1812989. The next prime is 1813001. The reversal of 1812996 is 6992181.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1812996.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8286 + ... + 8501.

It is an arithmetic number, because the mean of its divisors is an integer number (195860).

2^1812996 is an apocalyptic number.

It is an amenable number.

1812996 is an abundant number, since it is smaller than the sum of its proper divisors (2887644).

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

1812996 is a wasteful number, since it uses less digits than its factorization.

1812996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16800 (or 16792 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1812996 is about 1346.4753989583. The cubic root of 1812996 is about 121.9360948124.

It can be divided in two parts, 18129 and 96, that added together give a square (18225 = 135²).

The spelling of 1812996 in words is "one million, eight hundred twelve thousand, nine hundred ninety-six".