1326473632 has 144 divisors (see below), whose sum is σ = 3043789056. Its totient is φ = 567705600.

The previous prime is 1326473623. The next prime is 1326473633. The reversal of 1326473632 is 2363746231.

It is a junction number, because it is equal to n+sod(n) for n = 1326473591 and 1326473600.

It is not an unprimeable number, because it can be changed into a prime (1326473633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5161248 + ... + 5161504.

It is an arithmetic number, because the mean of its divisors is an integer number (21137424).

Almost surely, 2^1326473632 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 1326473632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521894528).

1326473632 is an abundant number, since it is smaller than the sum of its proper divisors (1717315424).

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

1326473632 is a wasteful number, since it uses less digits than its factorization.

1326473632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 344 counting only the distinct ones).

The product of its digits is 108864, while the sum is 37.

The square root of 1326473632 is about 36420.7857136553. The cubic root of 1326473632 is about 1098.7516504967.

The spelling of 1326473632 in words is "one billion, three hundred twenty-six million, four hundred seventy-three thousand, six hundred thirty-two".