1366642032 has 160 divisors (see below), whose sum is σ = 4266155520. Its totient is φ = 369294336.

The previous prime is 1366642031. The next prime is 1366642049. The reversal of 1366642032 is 2302466631.

It is a junction number, because it is equal to n+sod(n) for n = 1366641984 and 1366642002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366642031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2304328 + ... + 2304920.

It is an arithmetic number, because the mean of its divisors is an integer number (26663472).

Almost surely, 2^1366642032 is an apocalyptic number.

1366642032 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 1366642032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133077760).

1366642032 is an abundant number, since it is smaller than the sum of its proper divisors (2899513488).

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

1366642032 is an equidigital number, since it uses as much as digits as its factorization.

1366642032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1366642032 is about 36968.1218348999. The cubic root of 1366642032 is about 1109.7323792770.

The spelling of 1366642032 in words is "one billion, three hundred sixty-six million, six hundred forty-two thousand, thirty-two".