1340142074 has 4 divisors (see below), whose sum is σ = 2010213114. Its totient is φ = 670071036.

The previous prime is 1340142061. The next prime is 1340142077. The reversal of 1340142074 is 4702410431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4702410431 = 5233 ⋅898607.

It can be written as a sum of positive squares in only one way, i.e., 1232501449 + 107640625 = 35107^2 + 10375^2 .

It is not an unprimeable number, because it can be changed into a prime (1340142077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335035517 + ... + 335035520.

Almost surely, 2^1340142074 is an apocalyptic number.

1340142074 is a deficient number, since it is larger than the sum of its proper divisors (670071040).

1340142074 is an equidigital number, since it uses as much as digits as its factorization.

1340142074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670071039.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1340142074 is about 36607.9509669689. The cubic root of 1340142074 is about 1102.5127334704.

The spelling of 1340142074 in words is "one billion, three hundred forty million, one hundred forty-two thousand, seventy-four".