389302452 has 108 divisors (see below), whose sum is σ = 1248863616. Its totient is φ = 101112480.

The previous prime is 389302411. The next prime is 389302481. The reversal of 389302452 is 254203983.

389302452 is a `hidden beast` number, since 389 + 30 + 245 + 2 = 666.

It is a super-3 number, since 3×389302452³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9373 + ... + 29435.

It is an arithmetic number, because the mean of its divisors is an integer number (11563552).

Almost surely, 2^389302452 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 389302452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624431808).

389302452 is an abundant number, since it is smaller than the sum of its proper divisors (859561164).

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

389302452 is a wasteful number, since it uses less digits than its factorization.

389302452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098 (or 20086 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 389302452 is about 19730.7488960759. The cubic root of 389302452 is about 730.1785089191.

The spelling of 389302452 in words is "three hundred eighty-nine million, three hundred two thousand, four hundred fifty-two".