1368641232 has 160 divisors (see below), whose sum is σ = 4503680000. Its totient is φ = 389826432.

The previous prime is 1368641179. The next prime is 1368641279. The reversal of 1368641232 is 2321468631.

1368641232 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 641 + 2 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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, 1508523 + ... + 1509429.

It is an arithmetic number, because the mean of its divisors is an integer number (28148000).

Almost surely, 2^1368641232 is an apocalyptic number.

1368641232 is a gapful number since it is divisible by the number (12) 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 1368641232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2251840000).

1368641232 is an abundant number, since it is smaller than the sum of its proper divisors (3135038768).

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

1368641232 is a wasteful number, since it uses less digits than its factorization.

1368641232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1418 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1368641232 is about 36995.1514661043. The cubic root of 1368641232 is about 1110.2732417169.

The spelling of 1368641232 in words is "one billion, three hundred sixty-eight million, six hundred forty-one thousand, two hundred thirty-two".