1816072 has 16 divisors (see below), whose sum is σ = 3432060. Its totient is φ = 900864.

The previous prime is 1816069. The next prime is 1816091. The reversal of 1816072 is 2706181.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 4356 = 1346^2 + 66^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268 + ... + 1924.

2^1816072 is an apocalyptic number.

It is an amenable number.

1816072 is a deficient number, since it is larger than the sum of its proper divisors (1615988).

1816072 is a wasteful number, since it uses less digits than its factorization.

1816072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1816072 is about 1347.6171563170. The cubic root of 1816072 is about 122.0050163663.

The spelling of 1816072 in words is "one million, eight hundred sixteen thousand, seventy-two".