1368283881 has 32 divisors (see below), whose sum is σ = 1908085248. Its totient is φ = 871453440.

The previous prime is 1368283877. The next prime is 1368283883. The reversal of 1368283881 is 1883828631.

It is not a de Polignac number, because 1368283881 - 2² = 1368283877 is a prime.

It is a super-2 number, since 2×1368283881² = 3744401558008844322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1368283881.

It is not an unprimeable number, because it can be changed into a prime (1368283883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2069691 + ... + 2070351.

It is an arithmetic number, because the mean of its divisors is an integer number (59627664).

Almost surely, 2^1368283881 is an apocalyptic number.

It is an amenable number.

1368283881 is a deficient number, since it is larger than the sum of its proper divisors (539801367).

1368283881 is a wasteful number, since it uses less digits than its factorization.

1368283881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its digits is 442368, while the sum is 48.

The square root of 1368283881 is about 36990.3214503470. The cubic root of 1368283881 is about 1110.1766028560.

The spelling of 1368283881 in words is "one billion, three hundred sixty-eight million, two hundred eighty-three thousand, eight hundred eighty-one".