1340453401 has 8 divisors (see below), whose sum is σ = 1612575680. Its totient is φ = 1088488368.

The previous prime is 1340453393. The next prime is 1340453419. The reversal of 1340453401 is 1043540431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340453401 - 2³ = 1340453393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340453461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5039166 + ... + 5039431.

It is an arithmetic number, because the mean of its divisors is an integer number (201571960).

Almost surely, 2^1340453401 is an apocalyptic number.

It is an amenable number.

1340453401 is a deficient number, since it is larger than the sum of its proper divisors (272122279).

1340453401 is a wasteful number, since it uses less digits than its factorization.

1340453401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078623.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1340453401 is about 36612.2028973947. The cubic root of 1340453401 is about 1102.5981013859.

Adding to 1340453401 its reverse (1043540431), we get a palindrome (2383993832).

The spelling of 1340453401 in words is "one billion, three hundred forty million, four hundred fifty-three thousand, four hundred one".