1389922 has 8 divisors (see below), whose sum is σ = 2120400. Its totient is φ = 683124.

The previous prime is 1389919. The next prime is 1389943. The reversal of 1389922 is 2299831.

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

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, 5772 + ... + 6007.

It is an arithmetic number, because the mean of its divisors is an integer number (265050).

2^1389922 is an apocalyptic number.

1389922 is a deficient number, since it is larger than the sum of its proper divisors (730478).

1389922 is a wasteful number, since it uses less digits than its factorization.

1389922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11840.

The product of its digits is 7776, while the sum is 34.

The square root of 1389922 is about 1178.9495324228. The cubic root of 1389922 is about 111.5998154354.

Subtracting 1389922 from its reverse (2299831), we obtain a palindrome (909909).

The spelling of 1389922 in words is "one million, three hundred eighty-nine thousand, nine hundred twenty-two".