1326290112 has 392 divisors, whose sum is σ = 4690701312. Its totient is φ = 363916800.

The previous prime is 1326290111. The next prime is 1326290131. The reversal of 1326290112 is 2110926231.

1326290112 is a `hidden beast` number, since 1 + 32 + 629 + 0 + 1 + 1 + 2 = 666.

It is a super-2 number, since 2×1326290112² = 3518090922377945088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1326290111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 10124287 + ... + 10124417.

Almost surely, 2^1326290112 is an apocalyptic number.

1326290112 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 1326290112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345350656).

1326290112 is an abundant number, since it is smaller than the sum of its proper divisors (3364411200).

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

1326290112 is an equidigital number, since it uses as much as digits as its factorization.

1326290112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1326290112 is about 36418.2661860776. The cubic root of 1326290112 is about 1098.7009767409.

The spelling of 1326290112 in words is "one billion, three hundred twenty-six million, two hundred ninety thousand, one hundred twelve".