389351824 has 15 divisors (see below), whose sum is σ = 754522113. Its totient is φ = 194636448.

The previous prime is 389351821. The next prime is 389351873. The reversal of 389351824 is 428153983.

The square root of 389351824 is 19732.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 121440400 + 267911424 = 11020^2 + 16368^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389351821) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76462 + ... + 81394.

Almost surely, 2^389351824 is an apocalyptic number.

389351824 is the 19732-nd square number.

It is an amenable number.

389351824 is a deficient number, since it is larger than the sum of its proper divisors (365170289).

389351824 is an frugal number, since it uses more digits than its factorization.

389351824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9874 (or 4935 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The cubic root of 389351824 is about 730.2093751084.

The spelling of 389351824 in words is "three hundred eighty-nine million, three hundred fifty-one thousand, eight hundred twenty-four".