1340474 has 4 divisors (see below), whose sum is σ = 2010714. Its totient is φ = 670236.

The previous prime is 1340459. The next prime is 1340477. The reversal of 1340474 is 4740431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4740431 = 1049 ⋅4519.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 310249 = 1015^2 + 557^2 .

It is not an unprimeable number, because it can be changed into a prime (1340477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335117 + ... + 335120.

2^1340474 is an apocalyptic number.

1340474 is a deficient number, since it is larger than the sum of its proper divisors (670240).

1340474 is an equidigital number, since it uses as much as digits as its factorization.

1340474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670239.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1340474 is about 1157.7884089936. The cubic root of 1340474 is about 110.2603749301.

The spelling of 1340474 in words is "one million, three hundred forty thousand, four hundred seventy-four".