1368834642 has 24 divisors (see below), whose sum is σ = 3389495616. Its totient is φ = 391095576.

The previous prime is 1368834641. The next prime is 1368834661. The reversal of 1368834642 is 2464388631.

It is not an unprimeable number, because it can be changed into a prime (1368834641) 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 11 ways as a sum of consecutive naturals, for example, 5431758 + ... + 5432009.

It is an arithmetic number, because the mean of its divisors is an integer number (141228984).

Almost surely, 2^1368834642 is an apocalyptic number.

1368834642 is an abundant number, since it is smaller than the sum of its proper divisors (2020660974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368834642 is a wasteful number, since it uses less digits than its factorization.

1368834642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10863782 (or 10863779 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 1368834642 is about 36997.7653649514. The cubic root of 1368834642 is about 1110.3255388002.

The spelling of 1368834642 in words is "one billion, three hundred sixty-eight million, eight hundred thirty-four thousand, six hundred forty-two".