1326204648 has 48 divisors (see below), whose sum is σ = 3595924800. Its totient is φ = 441561120.

The previous prime is 1326204647. The next prime is 1326204673. The reversal of 1326204648 is 8464026231.

1326204648 is a `hidden beast` number, since 1 + 3 + 2 + 6 + 2 + 0 + 4 + 648 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1326204641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55483 + ... + 75701.

It is an arithmetic number, because the mean of its divisors is an integer number (74915100).

Almost surely, 2^1326204648 is an apocalyptic number.

1326204648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1326204648 is an abundant number, since it is smaller than the sum of its proper divisors (2269720152).

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

1326204648 is a wasteful number, since it uses less digits than its factorization.

1326204648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21142 (or 21135 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1326204648 is about 36417.0927999477. The cubic root of 1326204648 is about 1098.6773767265.

The spelling of 1326204648 in words is "one billion, three hundred twenty-six million, two hundred four thousand, six hundred forty-eight".