1338961463 has 16 divisors (see below), whose sum is σ = 1621638144. Its totient is φ = 1079249280.

The previous prime is 1338961447. The next prime is 1338961487. The reversal of 1338961463 is 3641698331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1338961463 - 2⁴ = 1338961447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338961493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158558 + ... + 166788.

It is an arithmetic number, because the mean of its divisors is an integer number (101352384).

Almost surely, 2^1338961463 is an apocalyptic number.

1338961463 is a deficient number, since it is larger than the sum of its proper divisors (282676681).

1338961463 is a wasteful number, since it uses less digits than its factorization.

1338961463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622.

The product of its digits is 279936, while the sum is 44.

The square root of 1338961463 is about 36591.8223514490. The cubic root of 1338961463 is about 1102.1888819665.

The spelling of 1338961463 in words is "one billion, three hundred thirty-eight million, nine hundred sixty-one thousand, four hundred sixty-three".