389876550 has 48 divisors (see below), whose sum is σ = 1105024512. Its totient is φ = 89114400.

The previous prime is 389876537. The next prime is 389876569. The reversal of 389876550 is 55678983.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 389876493 and 389876502.

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, 184606 + ... + 186705.

It is an arithmetic number, because the mean of its divisors is an integer number (23021344).

Almost surely, 2^389876550 is an apocalyptic number.

389876550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

389876550 is an abundant number, since it is smaller than the sum of its proper divisors (715147962).

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

389876550 is a wasteful number, since it uses less digits than its factorization.

389876550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371333 (or 371328 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 389876550 is about 19745.2918438802. The cubic root of 389876550 is about 730.5372600894.

The spelling of 389876550 in words is "three hundred eighty-nine million, eight hundred seventy-six thousand, five hundred fifty".