389850092820 has 72 divisors (see below), whose sum is σ = 1182670125000. Its totient is φ = 103949049600.

The previous prime is 389850092701. The next prime is 389850092867. The reversal of 389850092820 is 28290058983.

389850092820 is a `hidden beast` number, since 3 + 8 + 98 + 500 + 9 + 28 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 154137900816 + 235712192004 = 392604^2 + 485502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1672806 + ... + 1891554.

Almost surely, 2^389850092820 is an apocalyptic number.

389850092820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389850092820 is an abundant number, since it is smaller than the sum of its proper divisors (792820032180).

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

389850092820 is a wasteful number, since it uses less digits than its factorization.

389850092820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228665 (or 228660 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 389850092820 in words is "three hundred eighty-nine billion, eight hundred fifty million, ninety-two thousand, eight hundred twenty".