1340212 has 12 divisors (see below), whose sum is σ = 2483460. Its totient is φ = 630656.

The previous prime is 1340179. The next prime is 1340221. The reversal of 1340212 is 2120431.

It can be written as a sum of positive squares in 2 ways, for example, as 872356 + 467856 = 934^2 + 684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1340192 and 1340201.

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, 9787 + ... + 9922.

It is an arithmetic number, because the mean of its divisors is an integer number (206955).

2^1340212 is an apocalyptic number.

It is an amenable number.

1340212 is a deficient number, since it is larger than the sum of its proper divisors (1143248).

1340212 is a wasteful number, since it uses less digits than its factorization.

1340212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19730 (or 19728 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1340212 is about 1157.6752567106. The cubic root of 1340212 is about 110.2531908792.

Adding to 1340212 its reverse (2120431), we get a palindrome (3460643).

The spelling of 1340212 in words is "one million, three hundred forty thousand, two hundred twelve".