1340305455 has 16 divisors (see below), whose sum is σ = 2146005504. Its totient is φ = 714324000.

The previous prime is 1340305363. The next prime is 1340305493. The reversal of 1340305455 is 5545030431.

It is not a de Polignac number, because 1340305455 - 2⁷ = 1340305327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9171 + ... + 52580.

It is an arithmetic number, because the mean of its divisors is an integer number (134125344).

Almost surely, 2^1340305455 is an apocalyptic number.

1340305455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1340305455 is a deficient number, since it is larger than the sum of its proper divisors (805700049).

1340305455 is a wasteful number, since it uses less digits than its factorization.

1340305455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63206.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1340305455 is about 36610.1823950660. The cubic root of 1340305455 is about 1102.5575352659.

Adding to 1340305455 its reverse (5545030431), we get a palindrome (6885335886).

The spelling of 1340305455 in words is "one billion, three hundred forty million, three hundred five thousand, four hundred fifty-five".