1268390467 has 18 divisors (see below), whose sum is σ = 1364600268. Its totient is φ = 1178529264.

The previous prime is 1268390443. The next prime is 1268390483. The reversal of 1268390467 is 7640938621.

It is a de Polignac number, because none of the positive numbers 2^k-1268390467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268390567) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5538709 + ... + 5538937.

It is an arithmetic number, because the mean of its divisors is an integer number (75811126).

Almost surely, 2^1268390467 is an apocalyptic number.

1268390467 is a deficient number, since it is larger than the sum of its proper divisors (96209801).

1268390467 is an frugal number, since it uses more digits than its factorization.

1268390467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1268390467 is about 35614.4699104170. The cubic root of 1268390467 is about 1082.4744551786.

The spelling of 1268390467 in words is "one billion, two hundred sixty-eight million, three hundred ninety thousand, four hundred sixty-seven".