323729604 has 144 divisors (see below), whose sum is σ = 927553536. Its totient is φ = 94348800.

The previous prime is 323729603. The next prime is 323729633. The reversal of 323729604 is 406927323.

It is a happy number.

323729604 is a `hidden beast` number, since 3 + 23 + 7 + 29 + 604 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323729603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2061894 + ... + 2062050.

It is an arithmetic number, because the mean of its divisors is an integer number (6441344).

Almost surely, 2^323729604 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 323729604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463776768).

323729604 is an abundant number, since it is smaller than the sum of its proper divisors (603823932).

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

323729604 is a wasteful number, since it uses less digits than its factorization.

323729604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 323729604 is about 17992.4874322591. The cubic root of 323729604 is about 686.6374268296.

Adding to 323729604 its product of nonzero digits (54432), we get a square (323784036 = 17994²).

It can be divided in two parts, 323 and 729604, that added together give a palindrome (729927).

The spelling of 323729604 in words is "three hundred twenty-three million, seven hundred twenty-nine thousand, six hundred four".