1366231132 has 72 divisors (see below), whose sum is σ = 2912329728. Its totient is φ = 558482400.

The previous prime is 1366231127. The next prime is 1366231171. The reversal of 1366231132 is 2311326631.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1366231132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429813 + ... + 432979.

It is an arithmetic number, because the mean of its divisors is an integer number (40449024).

Almost surely, 2^1366231132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366231132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456164864).

1366231132 is an abundant number, since it is smaller than the sum of its proper divisors (1546098596).

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

1366231132 is a wasteful number, since it uses less digits than its factorization.

1366231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3278 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 1366231132 is about 36962.5639262214. The cubic root of 1366231132 is about 1109.6211492862.

Adding to 1366231132 its reverse (2311326631), we get a palindrome (3677557763).

The spelling of 1366231132 in words is "one billion, three hundred sixty-six million, two hundred thirty-one thousand, one hundred thirty-two".