389765450 has 12 divisors (see below), whose sum is σ = 724963830. Its totient is φ = 155906160.

The previous prime is 389765419. The next prime is 389765461. The reversal of 389765450 is 54567983.

It can be written as a sum of positive squares in 3 ways, for example, as 313325401 + 76440049 = 17701^2 + 8743^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 389765395 and 389765404.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3897605 + ... + 3897704.

Almost surely, 2^389765450 is an apocalyptic number.

389765450 is a deficient number, since it is larger than the sum of its proper divisors (335198380).

389765450 is a wasteful number, since it uses less digits than its factorization.

389765450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795321 (or 7795316 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 389765450 is about 19742.4783145379. The cubic root of 389765450 is about 730.4678617117.

The spelling of 389765450 in words is "three hundred eighty-nine million, seven hundred sixty-five thousand, four hundred fifty".