1340525042 has 8 divisors (see below), whose sum is σ = 2010993132. Its totient is φ = 670194000.

The previous prime is 1340525041. The next prime is 1340525047. The reversal of 1340525042 is 2405250431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1317762601 + 22762441 = 36301^2 + 4771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1340525041) 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 in 3 ways as a sum of consecutive naturals, for example, 4709 + ... + 51992.

Almost surely, 2^1340525042 is an apocalyptic number.

1340525042 is a deficient number, since it is larger than the sum of its proper divisors (670468090).

1340525042 is a wasteful number, since it uses less digits than its factorization.

1340525042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68524.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1340525042 is about 36613.1812603057. The cubic root of 1340525042 is about 1102.6177439495.

Adding to 1340525042 its reverse (2405250431), we get a palindrome (3745775473).

It can be divided in two parts, 1 and 340525042, that added together give a palindrome (340525043).

The spelling of 1340525042 in words is "one billion, three hundred forty million, five hundred twenty-five thousand, forty-two".