1890336484 has 9 divisors (see below), whose sum is σ = 3308241027. Its totient is φ = 945124764.

The previous prime is 1890336463. The next prime is 1890336523. The reversal of 1890336484 is 4846330981.

The square root of 1890336484 is 43478.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76087 + ... + 97825.

Almost surely, 2^1890336484 is an apocalyptic number.

1890336484 is the 43478-th square number.

It is an amenable number.

1890336484 is a deficient number, since it is larger than the sum of its proper divisors (1417904543).

1890336484 is an frugal number, since it uses more digits than its factorization.

1890336484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43482 (or 21741 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The cubic root of 1890336484 is about 1236.4589584227.

The spelling of 1890336484 in words is "one billion, eight hundred ninety million, three hundred thirty-six thousand, four hundred eighty-four".