1340764 has 12 divisors (see below), whose sum is σ = 2379888. Its totient is φ = 660800.

The previous prime is 1340761. The next prime is 1340767. The reversal of 1340764 is 4670431.

It is an interprime number because it is at equal distance from previous prime (1340761) and next prime (1340767).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077 + ... + 2644.

It is an arithmetic number, because the mean of its divisors is an integer number (198324).

2^1340764 is an apocalyptic number.

It is an amenable number.

1340764 is a deficient number, since it is larger than the sum of its proper divisors (1039124).

1340764 is a wasteful number, since it uses less digits than its factorization.

1340764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796 (or 4794 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1340764 is about 1157.9136409940. The cubic root of 1340764 is about 110.2683256508.

The spelling of 1340764 in words is "one million, three hundred forty thousand, seven hundred sixty-four".