1806946 has 8 divisors (see below), whose sum is σ = 2773584. Its totient is φ = 882420.

The previous prime is 1806943. The next prime is 1806953. The reversal of 1806946 is 6496081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1806941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10420 + ... + 10591.

It is an arithmetic number, because the mean of its divisors is an integer number (346698).

2^1806946 is an apocalyptic number.

1806946 is a deficient number, since it is larger than the sum of its proper divisors (966638).

1806946 is a wasteful number, since it uses less digits than its factorization.

1806946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1806946 is about 1344.2269153681. The cubic root of 1806946 is about 121.8003093527.

It can be divided in two parts, 1806 and 946, that multiplied together give a triangular number (1708476 = T₁₈₄₈).

The spelling of 1806946 in words is "one million, eight hundred six thousand, nine hundred forty-six".