389952984 has 64 divisors (see below), whose sum is σ = 999037440. Its totient is φ = 126783360.

The previous prime is 389952977. The next prime is 389953033. The reversal of 389952984 is 489259983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589614 + ... + 590274.

It is an arithmetic number, because the mean of its divisors is an integer number (15609960).

Almost surely, 2^389952984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389952984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499518720).

389952984 is an abundant number, since it is smaller than the sum of its proper divisors (609084456).

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

389952984 is a wasteful number, since it uses less digits than its factorization.

389952984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1236 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The square root of 389952984 is about 19747.2272484012. The cubic root of 389952984 is about 730.5849967695.

The spelling of 389952984 in words is "three hundred eighty-nine million, nine hundred fifty-two thousand, nine hundred eighty-four".