389621942 has 8 divisors (see below), whose sum is σ = 615192600. Its totient is φ = 184557744.

The previous prime is 389621891. The next prime is 389621959. The reversal of 389621942 is 249126983.

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

It is a junction number, because it is equal to n+sod(n) for n = 389621893 and 389621902.

It is a congruent number.

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, 5126567 + ... + 5126642.

It is an arithmetic number, because the mean of its divisors is an integer number (76899075).

Almost surely, 2^389621942 is an apocalyptic number.

389621942 is a deficient number, since it is larger than the sum of its proper divisors (225570658).

389621942 is a wasteful number, since it uses less digits than its factorization.

389621942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253230.

The product of its digits is 186624, while the sum is 44.

The square root of 389621942 is about 19738.8434818254. The cubic root of 389621942 is about 730.3782002242.

It can be divided in two parts, 38962 and 1942, that added together give a palindrome (40904).

The spelling of 389621942 in words is "three hundred eighty-nine million, six hundred twenty-one thousand, nine hundred forty-two".