1890738160 has 20 divisors (see below), whose sum is σ = 4395966408. Its totient is φ = 756295232.

The previous prime is 1890738149. The next prime is 1890738169. The reversal of 1890738160 is 618370981.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890738169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11817034 + ... + 11817193.

Almost surely, 2^1890738160 is an apocalyptic number.

1890738160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1890738160 is an abundant number, since it is smaller than the sum of its proper divisors (2505228248).

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

1890738160 is a wasteful number, since it uses less digits than its factorization.

1890738160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23634240 (or 23634234 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1890738160 is about 43482.6190563540. The cubic root of 1890738160 is about 1236.5465302596.

The spelling of 1890738160 in words is "one billion, eight hundred ninety million, seven hundred thirty-eight thousand, one hundred sixty".