1340378 has 16 divisors (see below), whose sum is σ = 2236416. Its totient is φ = 598320.

The previous prime is 1340369. The next prime is 1340387. The reversal of 1340378 is 8730431.

It is an interprime number because it is at equal distance from previous prime (1340369) and next prime (1340387).

It is a super-2 number, since 2×1340378² = 3593226365768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (139776).

2^1340378 is an apocalyptic number.

1340378 is a deficient number, since it is larger than the sum of its proper divisors (896038).

1340378 is a wasteful number, since it uses less digits than its factorization.

1340378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1340378 is about 1157.7469498988. The cubic root of 1340378 is about 110.2577427148.

The spelling of 1340378 in words is "one million, three hundred forty thousand, three hundred seventy-eight".