1340346 has 48 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 370944.

The previous prime is 1340333. The next prime is 1340357. The reversal of 1340346 is 6430431.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13770 + ... + 13866.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2^1340346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608768).

1340346 is an abundant number, since it is smaller than the sum of its proper divisors (1877190).

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

1340346 is a wasteful number, since it uses less digits than its factorization.

1340346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 156 counting only the distinct ones).

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

The square root of 1340346 is about 1157.7331298706. The cubic root of 1340346 is about 110.2568652817.

Adding to 1340346 its reverse (6430431), we get a palindrome (7770777).

The spelling of 1340346 in words is "one million, three hundred forty thousand, three hundred forty-six".