1368233856 has 448 divisors, whose sum is σ = 4709168640. Its totient is φ = 391910400.

The previous prime is 1368233809. The next prime is 1368233863. The reversal of 1368233856 is 6583328631.

1368233856 is a `hidden beast` number, since 1 + 368 + 233 + 8 + 56 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (622080) is a multiple of the sum of its prime divisors (90).

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 31819371 + ... + 31819413.

Almost surely, 2^1368233856 is an apocalyptic number.

1368233856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368233856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354584320).

1368233856 is an abundant number, since it is smaller than the sum of its proper divisors (3340934784).

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

1368233856 is an equidigital number, since it uses as much as digits as its factorization.

1368233856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 90 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 1368233856 is about 36989.6452537734. The cubic root of 1368233856 is about 1110.1630731925.

The spelling of 1368233856 in words is "one billion, three hundred sixty-eight million, two hundred thirty-three thousand, eight hundred fifty-six".