1813046 has 4 divisors (see below), whose sum is σ = 2719572. Its totient is φ = 906522.

The previous prime is 1813039. The next prime is 1813073. The reversal of 1813046 is 6403181.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 453260 + ... + 453263.

It is an arithmetic number, because the mean of its divisors is an integer number (679893).

2^1813046 is an apocalyptic number.

1813046 is a deficient number, since it is larger than the sum of its proper divisors (906526).

1813046 is an equidigital number, since it uses as much as digits as its factorization.

1813046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906525.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1813046 is about 1346.4939658238. The cubic root of 1813046 is about 121.9372157468.

The spelling of 1813046 in words is "one million, eight hundred thirteen thousand, forty-six".