389070 has 64 divisors (see below), whose sum is σ = 1140480. Its totient is φ = 93600.

The previous prime is 389057. The next prime is 389083. The reversal of 389070 is 70983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (389057) and next prime (389083).

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2905 + ... + 3035.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2³⁸⁹⁰⁷⁰ is an apocalyptic number.

389070 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 389070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570240).

389070 is an abundant number, since it is smaller than the sum of its proper divisors (751410).

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

389070 is a wasteful number, since it uses less digits than its factorization.

389070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 389070 is about 623.7547595009. The cubic root of 389070 is about 73.0033150431.

The spelling of 389070 in words is "three hundred eighty-nine thousand, seventy".