1326634404 has 12 divisors (see below), whose sum is σ = 3095480304. Its totient is φ = 442211464.

The previous prime is 1326634403. The next prime is 1326634433. The reversal of 1326634404 is 4044366231.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1326634403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55276422 + ... + 55276445.

It is an arithmetic number, because the mean of its divisors is an integer number (257956692).

Almost surely, 2^1326634404 is an apocalyptic number.

It is an amenable number.

1326634404 is an abundant number, since it is smaller than the sum of its proper divisors (1768845900).

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

1326634404 is a wasteful number, since it uses less digits than its factorization.

1326634404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110552874 (or 110552872 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 1326634404 is about 36422.9927930147. The cubic root of 1326634404 is about 1098.7960392077.

The spelling of 1326634404 in words is "one billion, three hundred twenty-six million, six hundred thirty-four thousand, four hundred four".