1340475 has 24 divisors (see below), whose sum is σ = 2260272. Its totient is φ = 700800.

The previous prime is 1340459. The next prime is 1340477. The reversal of 1340475 is 5740431.

It is not a de Polignac number, because 1340475 - 2⁴ = 1340459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340477) 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 23 ways as a sum of consecutive naturals, for example, 4429 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (94178).

2^1340475 is an apocalyptic number.

1340475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1340475 is a deficient number, since it is larger than the sum of its proper divisors (919797).

1340475 is a wasteful number, since it uses less digits than its factorization.

1340475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1340475 is about 1157.7888408514. The cubic root of 1340475 is about 110.2604023484.

The spelling of 1340475 in words is "one million, three hundred forty thousand, four hundred seventy-five".