1340634 has 8 divisors (see below), whose sum is σ = 2681280. Its totient is φ = 446876.

The previous prime is 1340627. The next prime is 1340639. The reversal of 1340634 is 4360431.

It is a sphenic number, since it is the product of 3 distinct primes.

1340634 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340634.

It is not an unprimeable number, because it can be changed into a prime (1340639) 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, 111714 + ... + 111725.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

2^1340634 is an apocalyptic number.

1340634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1340634 is a wasteful number, since it uses less digits than its factorization.

1340634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223444.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1340634 is about 1157.8575041861. The cubic root of 1340634 is about 110.2647616764.

The spelling of 1340634 in words is "one million, three hundred forty thousand, six hundred thirty-four".