1340790 has 64 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 304640.

The previous prime is 1340789. The next prime is 1340797. The reversal of 1340790 is 970431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5491 + ... + 5729.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2^1340790 is an apocalyptic number.

1340790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866240).

1340790 is an abundant number, since it is smaller than the sum of its proper divisors (2391690).

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

1340790 is a wasteful number, since it uses less digits than its factorization.

1340790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1340790 is about 1157.9248680290. The cubic root of 1340790 is about 110.2690384181.

The spelling of 1340790 in words is "one million, three hundred forty thousand, seven hundred ninety".