389221300 has 36 divisors (see below), whose sum is σ = 909583276. Its totient is φ = 143712000.

The previous prime is 389221277. The next prime is 389221309. The reversal of 389221300 is 3122983.

It can be written as a sum of positive squares in 6 ways, for example, as 47858724 + 341362576 = 6918^2 + 18476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389221309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148401 + ... + 151000.

Almost surely, 2^389221300 is an apocalyptic number.

It is an amenable number.

389221300 is an abundant number, since it is smaller than the sum of its proper divisors (520361976).

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

389221300 is a wasteful number, since it uses less digits than its factorization.

389221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299428 (or 299421 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 389221300 is about 19728.6923033434. The cubic root of 389221300 is about 730.1277689663.

The spelling of 389221300 in words is "three hundred eighty-nine million, two hundred twenty-one thousand, three hundred".