1340704 has 12 divisors (see below), whose sum is σ = 2639574. Its totient is φ = 670336.

The previous prime is 1340701. The next prime is 1340707. The reversal of 1340704 is 4070431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1340701) and next prime (1340707).

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 300304 = 1020^2 + 548^2 .

It is a pancake number, because a pancake can be divided into 1340704 parts by 1637 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (1340701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20917 + ... + 20980.

2^1340704 is an apocalyptic number.

It is an amenable number.

1340704 is a deficient number, since it is larger than the sum of its proper divisors (1298870).

1340704 is an equidigital number, since it uses as much as digits as its factorization.

1340704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41907 (or 41899 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1340704 is about 1157.8877320362. The cubic root of 1340704 is about 110.2666807682.

The spelling of 1340704 in words is "one million, three hundred forty thousand, seven hundred four".