389659500 has 144 divisors (see below), whose sum is σ = 1240503264. Its totient is φ = 102960000.

The previous prime is 389659483. The next prime is 389659511. The reversal of 389659500 is 5956983.

389659500 is a `hidden beast` number, since 3 + 8 + 96 + 59 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 589170 + ... + 589830.

It is an arithmetic number, because the mean of its divisors is an integer number (8614606).

Almost surely, 2^389659500 is an apocalyptic number.

389659500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389659500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620251632).

389659500 is an abundant number, since it is smaller than the sum of its proper divisors (850843764).

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

389659500 is a wasteful number, since it uses less digits than its factorization.

389659500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 389659500 is about 19739.7948317605. The cubic root of 389659500 is about 730.4016679845.

The spelling of 389659500 in words is "three hundred eighty-nine million, six hundred fifty-nine thousand, five hundred".