1842245 has 6 divisors (see below), whose sum is σ = 2214342. Its totient is φ = 1471368.

The previous prime is 1842233. The next prime is 1842251. The reversal of 1842245 is 5422481.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1473796 + 368449 = 1214^2 + 607^2 .

It is not a de Polignac number, because 1842245 - 2⁴ = 1842229 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2732 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (369057).

2^1842245 is an apocalyptic number.

It is an amenable number.

1842245 is a deficient number, since it is larger than the sum of its proper divisors (372097).

1842245 is an frugal number, since it uses more digits than its factorization.

1842245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 612 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1842245 is about 1357.2932623424. The cubic root of 1842245 is about 122.5883300182.

The spelling of 1842245 in words is "one million, eight hundred forty-two thousand, two hundred forty-five".