1389012 has 12 divisors (see below), whose sum is σ = 3241056. Its totient is φ = 463000.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389012 is 2109831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1389012² = 3858708672288, which contains 22 as substring.

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, 57864 + ... + 57887.

It is an arithmetic number, because the mean of its divisors is an integer number (270088).

2^1389012 is an apocalyptic number.

1389012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1389012 is an abundant number, since it is smaller than the sum of its proper divisors (1852044).

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

1389012 is a wasteful number, since it uses less digits than its factorization.

1389012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115758 (or 115756 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1389012 is about 1178.5635324411. The cubic root of 1389012 is about 111.5754548350.

The spelling of 1389012 in words is "one million, three hundred eighty-nine thousand, twelve".