1368831376 has 60 divisors (see below), whose sum is σ = 2941397676. Its totient is φ = 616591360.

The previous prime is 1368831353. The next prime is 1368831389. The reversal of 1368831376 is 6731388631.

It can be written as a sum of positive squares in 2 ways, for example, as 706283776 + 662547600 = 26576^2 + 25740^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215640 + ... + 221896.

Almost surely, 2^1368831376 is an apocalyptic number.

1368831376 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 1368831376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470698838).

1368831376 is an abundant number, since it is smaller than the sum of its proper divisors (1572566300).

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

1368831376 is a wasteful number, since it uses less digits than its factorization.

1368831376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400 (or 6383 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 1368831376 is about 36997.7212271242. The cubic root of 1368831376 is about 1110.3246557312.

The spelling of 1368831376 in words is "one billion, three hundred sixty-eight million, eight hundred thirty-one thousand, three hundred seventy-six".