1379340 has 72 divisors (see below), whose sum is σ = 4280640. Its totient is φ = 359424.

The previous prime is 1379321. The next prime is 1379353. The reversal of 1379340 is 439731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14172 + ... + 14268.

2^1379340 is an apocalyptic number.

1379340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2140320).

1379340 is an abundant number, since it is smaller than the sum of its proper divisors (2901300).

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

1379340 is a wasteful number, since it uses less digits than its factorization.

1379340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1379340 is about 1174.4530641963. The cubic root of 1379340 is about 111.3158764825.

The spelling of 1379340 in words is "one million, three hundred seventy-nine thousand, three hundred forty".