1806722 has 16 divisors (see below), whose sum is σ = 2798880. Its totient is φ = 874368.

The previous prime is 1806713. The next prime is 1806733. The reversal of 1806722 is 2276081.

It is a junction number, because it is equal to n+sod(n) for n = 1806691 and 1806700.

It is a congruent number.

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, 12929 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (174930).

2^1806722 is an apocalyptic number.

1806722 is a deficient number, since it is larger than the sum of its proper divisors (992158).

1806722 is a wasteful number, since it uses less digits than its factorization.

1806722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1806722 is about 1344.1435935197. The cubic root of 1806722 is about 121.7952761094.

The spelling of 1806722 in words is "one million, eight hundred six thousand, seven hundred twenty-two".