1326734172 has 36 divisors (see below), whose sum is σ = 3373786416. Its totient is φ = 439594560.

The previous prime is 1326734159. The next prime is 1326734183. The reversal of 1326734172 is 2714376231.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104329 + ... + 116352.

Almost surely, 2^1326734172 is an apocalyptic number.

1326734172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1326734172 is an abundant number, since it is smaller than the sum of its proper divisors (2047052244).

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

1326734172 is a wasteful number, since it uses less digits than its factorization.

1326734172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220858 (or 220853 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 1326734172 is about 36424.3623417075. The cubic root of 1326734172 is about 1098.8235830773.

The spelling of 1326734172 in words is "one billion, three hundred twenty-six million, seven hundred thirty-four thousand, one hundred seventy-two".