1326629412 has 18 divisors (see below), whose sum is σ = 3353424438. Its totient is φ = 442209792.

The previous prime is 1326629411. The next prime is 1326629417. The reversal of 1326629412 is 2149266231.

It is a happy number.

1326629412 is a `hidden beast` number, since 1 + 3 + 26 + 629 + 4 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1116495396 + 210134016 = 33414^2 + 14496^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 36850817 = 1326629412 / (1 + 3 + 2 + 6 + 6 + 2 + 9 + 4 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1326629411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18425373 + ... + 18425444.

Almost surely, 2^1326629412 is an apocalyptic number.

1326629412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1326629412 is an abundant number, since it is smaller than the sum of its proper divisors (2026795026).

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

1326629412 is a wasteful number, since it uses less digits than its factorization.

1326629412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36850827 (or 36850822 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1326629412 is about 36422.9242648088. The cubic root of 1326629412 is about 1098.7946609840.

The spelling of 1326629412 in words is "one billion, three hundred twenty-six million, six hundred twenty-nine thousand, four hundred twelve".