1806120144 has 60 divisors (see below), whose sum is σ = 5057488800. Its totient is φ = 601699392.

The previous prime is 1806120133. The next prime is 1806120157. The reversal of 1806120144 is 4410216081.

It is a happy number.

1806120144 is a `hidden beast` number, since 1 + 8 + 0 + 612 + 0 + 1 + 44 = 666.

1806120144 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476047 + ... + 479825.

It is an arithmetic number, because the mean of its divisors is an integer number (84291480).

Almost surely, 2^1806120144 is an apocalyptic number.

It is an amenable number.

1806120144 is an abundant number, since it is smaller than the sum of its proper divisors (3251368656).

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

1806120144 is a wasteful number, since it uses less digits than its factorization.

1806120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112 (or 7103 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1806120144 is about 42498.4722548941. The cubic root of 1806120144 is about 1217.8175044266.

The spelling of 1806120144 in words is "one billion, eight hundred six million, one hundred twenty thousand, one hundred forty-four".