1898521132 has 24 divisors (see below), whose sum is σ = 3361097376. Its totient is φ = 938243328.

The previous prime is 1898521129. The next prime is 1898521153. The reversal of 1898521132 is 2311258981.

It is a super-2 number, since 2×1898521132² = 7208764977301122848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225348 + ... + 233620.

It is an arithmetic number, because the mean of its divisors is an integer number (140045724).

Almost surely, 2^1898521132 is an apocalyptic number.

It is an amenable number.

1898521132 is a deficient number, since it is larger than the sum of its proper divisors (1462576244).

1898521132 is a wasteful number, since it uses less digits than its factorization.

1898521132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8937 (or 8935 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 1898521132 is about 43572.0223537995. The cubic root of 1898521132 is about 1238.2409005725.

The spelling of 1898521132 in words is "one billion, eight hundred ninety-eight million, five hundred twenty-one thousand, one hundred thirty-two".