1340712 has 40 divisors (see below), whose sum is σ = 3757050. Its totient is φ = 446688.

The previous prime is 1340707. The next prime is 1340723. The reversal of 1340712 is 2170431.

It can be written as a sum of positive squares in only one way, i.e., 1285956 + 54756 = 1134^2 + 234^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 387 + ... + 1682.

2^1340712 is an apocalyptic number.

1340712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340712 is an abundant number, since it is smaller than the sum of its proper divisors (2416338).

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

1340712 is a wasteful number, since it uses less digits than its factorization.

1340712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1340712 is about 1157.8911865974. The cubic root of 1340712 is about 110.2669000887.

The spelling of 1340712 in words is "one million, three hundred forty thousand, seven hundred twelve".