1326138600 has 96 divisors (see below), whose sum is σ = 4289814720. Its totient is φ = 338257920.

The previous prime is 1326138589. The next prime is 1326138607. The reversal of 1326138600 is 68316231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1326138607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34249 + ... + 61848.

It is an arithmetic number, because the mean of its divisors is an integer number (44685570).

Almost surely, 2^1326138600 is an apocalyptic number.

1326138600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326138600 is an abundant number, since it is smaller than the sum of its proper divisors (2963676120).

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

1326138600 is a wasteful number, since it uses less digits than its factorization.

1326138600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96139 (or 96130 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1326138600 is about 36416.1859617396. The cubic root of 1326138600 is about 1098.6591375484.

The spelling of 1326138600 in words is "one billion, three hundred twenty-six million, one hundred thirty-eight thousand, six hundred".