1842724 has 12 divisors (see below), whose sum is σ = 3472924. Its totient is φ = 850464.

The previous prime is 1842719. The next prime is 1842727. The reversal of 1842724 is 4272481.

It can be written as a sum of positive squares in 2 ways, for example, as 1000000 + 842724 = 1000^2 + 918^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1842692 and 1842701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842727) 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, 17667 + ... + 17770.

2^1842724 is an apocalyptic number.

It is an amenable number.

1842724 is a deficient number, since it is larger than the sum of its proper divisors (1630200).

1842724 is a wasteful number, since it uses less digits than its factorization.

1842724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35454 (or 35452 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1842724 is about 1357.4697050027. The cubic root of 1842724 is about 122.5989537809.

The spelling of 1842724 in words is "one million, eight hundred forty-two thousand, seven hundred twenty-four".