389506146 has 8 divisors (see below), whose sum is σ = 779012304. Its totient is φ = 129835380.

The previous prime is 389506123. The next prime is 389506151. The reversal of 389506146 is 641605983.

It is a sphenic number, since it is the product of 3 distinct primes.

389506146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 389506098 and 389506107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32458840 + ... + 32458851.

It is an arithmetic number, because the mean of its divisors is an integer number (97376538).

Almost surely, 2^389506146 is an apocalyptic number.

389506146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

389506146 is a wasteful number, since it uses less digits than its factorization.

389506146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64917696.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 389506146 is about 19735.9100626244. The cubic root of 389506146 is about 730.3058366969.

The spelling of 389506146 in words is "three hundred eighty-nine million, five hundred six thousand, one hundred forty-six".