1806072 has 16 divisors (see below), whose sum is σ = 4515240. Its totient is φ = 602016.

The previous prime is 1806061. The next prime is 1806089. The reversal of 1806072 is 2706081.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 75253 = 1806072 / (1 + 8 + 0 + 6 + 0 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37603 + ... + 37650.

2^1806072 is an apocalyptic number.

1806072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1806072 is an abundant number, since it is smaller than the sum of its proper divisors (2709168).

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

1806072 is a wasteful number, since it uses less digits than its factorization.

1806072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75262 (or 75258 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1806072 is about 1343.9017821255. The cubic root of 1806072 is about 121.7806683602.

Subtracting 1806072 from its reverse (2706081), we obtain a palindrome (900009).

The spelling of 1806072 in words is "one million, eight hundred six thousand, seventy-two".