1389263042 has 8 divisors (see below), whose sum is σ = 2084216832. Its totient is φ = 694524100.

The previous prime is 1389263041. The next prime is 1389263053. The reversal of 1389263042 is 2403629831.

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 = 1389262987 and 1389263005.

It is not an unprimeable number, because it can be changed into a prime (1389263041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36434 + ... + 64077.

It is an arithmetic number, because the mean of its divisors is an integer number (260527104).

Almost surely, 2^1389263042 is an apocalyptic number.

1389263042 is a deficient number, since it is larger than the sum of its proper divisors (694953790).

1389263042 is a wasteful number, since it uses less digits than its factorization.

1389263042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107424.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1389263042 is about 37272.8190777140. The cubic root of 1389263042 is about 1115.8217626434.

The spelling of 1389263042 in words is "one billion, three hundred eighty-nine million, two hundred sixty-three thousand, forty-two".