389213370 has 384 divisors, whose sum is σ = 1360558080. Its totient is φ = 78382080.

The previous prime is 389213333. The next prime is 389213371. The reversal of 389213370 is 73312983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389213371) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 5331654 + ... + 5331726.

It is an arithmetic number, because the mean of its divisors is an integer number (3543120).

Almost surely, 2^389213370 is an apocalyptic number.

389213370 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 389213370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680279040).

389213370 is an abundant number, since it is smaller than the sum of its proper divisors (971344710).

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

389213370 is a wasteful number, since it uses less digits than its factorization.

389213370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 389213370 is about 19728.4913259985. The cubic root of 389213370 is about 730.1228103883.

The spelling of 389213370 in words is "three hundred eighty-nine million, two hundred thirteen thousand, three hundred seventy".