389228434 has 32 divisors (see below), whose sum is σ = 682742016. Its totient is φ = 162976320.

The previous prime is 389228429. The next prime is 389228453. The reversal of 389228434 is 434822983.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132627 + ... + 135529.

It is an arithmetic number, because the mean of its divisors is an integer number (21335688).

Almost surely, 2^389228434 is an apocalyptic number.

389228434 is a deficient number, since it is larger than the sum of its proper divisors (293513582).

389228434 is a wasteful number, since it uses less digits than its factorization.

389228434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130.

The product of its digits is 331776, while the sum is 43.

The square root of 389228434 is about 19728.8731051725. The cubic root of 389228434 is about 730.1322297530.

The spelling of 389228434 in words is "three hundred eighty-nine million, two hundred twenty-eight thousand, four hundred thirty-four".