1831689628 has 12 divisors (see below), whose sum is σ = 3234865480. Its totient is φ = 907442352.

The previous prime is 1831689611. The next prime is 1831689679. The reversal of 1831689628 is 8269861381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100126 + ... + 2100997.

Almost surely, 2^1831689628 is an apocalyptic number.

It is an amenable number.

1831689628 is a deficient number, since it is larger than the sum of its proper divisors (1403175852).

1831689628 is a wasteful number, since it uses less digits than its factorization.

1831689628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201236 (or 4201234 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 1831689628 is about 42798.2432817049. The cubic root of 1831689628 is about 1223.5375306905.

The spelling of 1831689628 in words is "one billion, eight hundred thirty-one million, six hundred eighty-nine thousand, six hundred twenty-eight".