1368382890 has 64 divisors (see below), whose sum is σ = 3766798080. Its totient is φ = 311646720.

The previous prime is 1368382801. The next prime is 1368382909. The reversal of 1368382890 is 982838631.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47416 + ... + 70604.

It is an arithmetic number, because the mean of its divisors is an integer number (58856220).

Almost surely, 2^1368382890 is an apocalyptic number.

1368382890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368382890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1883399040).

1368382890 is an abundant number, since it is smaller than the sum of its proper divisors (2398415190).

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

1368382890 is a wasteful number, since it uses less digits than its factorization.

1368382890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23487.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 1368382890 is about 36991.6597356756. The cubic root of 1368382890 is about 1110.2033796639.

The spelling of 1368382890 in words is "one billion, three hundred sixty-eight million, three hundred eighty-two thousand, eight hundred ninety".