389470225 has 9 divisors (see below), whose sum is σ = 483065467. Its totient is φ = 311497240.

The previous prime is 389470217. The next prime is 389470231. The reversal of 389470225 is 522074983.

The square root of 389470225 is 19735.

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., 140209281 + 249260944 = 11841^2 + 15788^2 .

It is not a de Polignac number, because 389470225 - 2³ = 389470217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 96702 + ... + 100648.

Almost surely, 2^389470225 is an apocalyptic number.

389470225 is the 19735-th square number.

389470225 is the 9868-th centered octagonal number.

It is an amenable number.

389470225 is a deficient number, since it is larger than the sum of its proper divisors (93595242).

389470225 is an frugal number, since it uses more digits than its factorization.

389470225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The cubic root of 389470225 is about 730.2833859408.

The spelling of 389470225 in words is "three hundred eighty-nine million, four hundred seventy thousand, two hundred twenty-five".