1326491730 has 24 divisors (see below), whose sum is σ = 3448878732. Its totient is φ = 353731104.

The previous prime is 1326491729. The next prime is 1326491731. The reversal of 1326491730 is 371946231.

1326491730 is a `hidden beast` number, since 1 + 3 + 2 + 649 + 1 + 7 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1326491729) and next prime (1326491731).

It can be written as a sum of positive squares in 2 ways, for example, as 1255072329 + 71419401 = 35427^2 + 8451^2 .

It is not an unprimeable number, because it can be changed into a prime (1326491731) 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, 7369309 + ... + 7369488.

Almost surely, 2^1326491730 is an apocalyptic number.

1326491730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1326491730 is an abundant number, since it is smaller than the sum of its proper divisors (2122387002).

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

1326491730 is a wasteful number, since it uses less digits than its factorization.

1326491730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738810 (or 14738807 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1326491730 is about 36421.0341698310. The cubic root of 1326491730 is about 1098.7566474843.

The spelling of 1326491730 in words is "one billion, three hundred twenty-six million, four hundred ninety-one thousand, seven hundred thirty".