1389124 has 24 divisors (see below), whose sum is σ = 2683296. Its totient is φ = 624000.
The previous prime is 1389107. The next prime is 1389133. The reversal of 1389124 is 4219831.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 1389092 and 1389101.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5644 + ... + 5884.
It is an arithmetic number, because the mean of its divisors is an integer number (111804).
21389124 is an apocalyptic number.
It is an amenable number.
1389124 is a deficient number, since it is larger than the sum of its proper divisors (1294172).
1389124 is a wasteful number, since it uses less digits than its factorization.
1389124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 387 (or 385 counting only the distinct ones).
The product of its digits is 1728, while the sum is 28.
The square root of 1389124 is about 1178.6110469531. The cubic root of 1389124 is about 111.5784536368.
The spelling of 1389124 in words is "one million, three hundred eighty-nine thousand, one hundred twenty-four".
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