1367398881 has 16 divisors (see below), whose sum is σ = 2026372800. Its totient is φ = 911330784.

The previous prime is 1367398861. The next prime is 1367398909. The reversal of 1367398881 is 1888937631.

It is not a de Polignac number, because 1367398881 - 2²³ = 1359010273 is a prime.

It is a super-2 number, since 2×1367398881² = 3739559399520104322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1367398801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136285 + ... + 145973.

It is an arithmetic number, because the mean of its divisors is an integer number (126648300).

Almost surely, 2^1367398881 is an apocalyptic number.

It is an amenable number.

1367398881 is a deficient number, since it is larger than the sum of its proper divisors (658973919).

1367398881 is an equidigital number, since it uses as much as digits as its factorization.

1367398881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14925 (or 14919 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1367398881 is about 36978.3569267213. The cubic root of 1367398881 is about 1109.9371987844.

The spelling of 1367398881 in words is "one billion, three hundred sixty-seven million, three hundred ninety-eight thousand, eight hundred eighty-one".