1389460 has 12 divisors (see below), whose sum is σ = 2917908. Its totient is φ = 555776.

The previous prime is 1389439. The next prime is 1389469. The reversal of 1389460 is 649831.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 743044 = 804^2 + 862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389469) 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, 34717 + ... + 34756.

It is an arithmetic number, because the mean of its divisors is an integer number (243159).

2^1389460 is an apocalyptic number.

1389460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389460 is an abundant number, since it is smaller than the sum of its proper divisors (1528448).

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

1389460 is a wasteful number, since it uses less digits than its factorization.

1389460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69482 (or 69480 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1389460 is about 1178.7535789977. The cubic root of 1389460 is about 111.5874490752.

It can be divided in two parts, 1389 and 460, that added together give a square (1849 = 43²).

The spelling of 1389460 in words is "one million, three hundred eighty-nine thousand, four hundred sixty".