389308346 has 16 divisors (see below), whose sum is σ = 675428544. Its totient is φ = 164835744.

The previous prime is 389308319. The next prime is 389308349. The reversal of 389308346 is 643803983.

It is a junction number, because it is equal to n+sod(n) for n = 389308297 and 389308306.

It is not an unprimeable number, because it can be changed into a prime (389308349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166355 + ... + 168678.

It is an arithmetic number, because the mean of its divisors is an integer number (42214284).

Almost surely, 2^389308346 is an apocalyptic number.

389308346 is a deficient number, since it is larger than the sum of its proper divisors (286120198).

389308346 is a wasteful number, since it uses less digits than its factorization.

389308346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335125.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 389308346 is about 19730.8982562883. The cubic root of 389308346 is about 730.1821938436.

The spelling of 389308346 in words is "three hundred eighty-nine million, three hundred eight thousand, three hundred forty-six".