1890018162 has 18 divisors (see below), whose sum is σ = 4095439023. Its totient is φ = 629944572.

The previous prime is 1890018133. The next prime is 1890018181. The reversal of 1890018162 is 2618100981.

1890018162 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 945009081 + 945009081 = 30741^2 + 30741^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=30741.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 179323 + ... + 189569.

Almost surely, 2^1890018162 is an apocalyptic number.

1890018162 is an abundant number, since it is smaller than the sum of its proper divisors (2205420861).

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

1890018162 is an frugal number, since it uses more digits than its factorization.

1890018162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20502 (or 10252 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1890018162 is about 43474.3391209113. The cubic root of 1890018162 is about 1236.3895502888.

The spelling of 1890018162 in words is "one billion, eight hundred ninety million, eighteen thousand, one hundred sixty-two".