1340012641 has 16 divisors (see below), whose sum is σ = 1553352768. Its totient is φ = 1142438400.

The previous prime is 1340012633. The next prime is 1340012651. The reversal of 1340012641 is 1462100431.

It is a cyclic number.

It is not a de Polignac number, because 1340012641 - 2³ = 1340012633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340012651) 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 15 ways as a sum of consecutive naturals, for example, 40261 + ... + 65581.

It is an arithmetic number, because the mean of its divisors is an integer number (97084548).

Almost surely, 2^1340012641 is an apocalyptic number.

1340012641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1340012641 is a deficient number, since it is larger than the sum of its proper divisors (213340127).

1340012641 is a wasteful number, since it uses less digits than its factorization.

1340012641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25632.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1340012641 is about 36606.1830979413. The cubic root of 1340012641 is about 1102.4772381978.

The spelling of 1340012641 in words is "one billion, three hundred forty million, twelve thousand, six hundred forty-one".