344721132 has 72 divisors (see below), whose sum is σ = 1002319136. Its totient is φ = 97853184.

The previous prime is 344721109. The next prime is 344721211. The reversal of 344721132 is 231127443.

It is a happy number.

344721132 is a `hidden beast` number, since 3 + 447 + 211 + 3 + 2 = 666.

344721132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×344721132² = 237665317694722848, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 344721096 and 344721105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35208 + ... + 43920.

Almost surely, 2^344721132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344721132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501159568).

344721132 is an abundant number, since it is smaller than the sum of its proper divisors (657598004).

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

344721132 is a wasteful number, since it uses less digits than its factorization.

344721132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887 (or 8882 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 344721132 is about 18566.6672292041. The cubic root of 344721132 is about 701.1688851624.

Adding to 344721132 its reverse (231127443), we get a palindrome (575848575).

The spelling of 344721132 in words is "three hundred forty-four million, seven hundred twenty-one thousand, one hundred thirty-two".