1806342 has 8 divisors (see below), whose sum is σ = 3612696. Its totient is φ = 602112.

The previous prime is 1806341. The next prime is 1806347. The reversal of 1806342 is 2436081.

It is a happy number.

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

1806342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806341) 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, 150523 + ... + 150534.

It is an arithmetic number, because the mean of its divisors is an integer number (451587).

2^1806342 is an apocalyptic number.

1806342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1806342 is a wasteful number, since it uses less digits than its factorization.

1806342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301062.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1806342 is about 1344.0022321410. The cubic root of 1806342 is about 121.7867366200.

The spelling of 1806342 in words is "one million, eight hundred six thousand, three hundred forty-two".