389250 has 48 divisors (see below), whose sum is σ = 1058616. Its totient is φ = 103200.

The previous prime is 389231. The next prime is 389269. The reversal of 389250 is 52983.

It is an interprime number because it is at equal distance from previous prime (389231) and next prime (389269).

It can be written as a sum of positive squares in 4 ways, for example, as 205209 + 184041 = 453^2 + 429^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

389250 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2164 + ... + 2336.

2³⁸⁹²⁵⁰ is an apocalyptic number.

389250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 389250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529308).

389250 is an abundant number, since it is smaller than the sum of its proper divisors (669366).

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

389250 is a wasteful number, since it uses less digits than its factorization.

389250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 389250 is about 623.8990302926. The cubic root of 389250 is about 73.0145714329.

It can be divided in two parts, 3 and 89250, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 389250 in words is "three hundred eighty-nine thousand, two hundred fifty".