67604320 has 72 divisors (see below), whose sum is σ = 185812704. Its totient is φ = 23175936.

The previous prime is 67604297. The next prime is 67604333. The reversal of 67604320 is 2340676.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3529 + ... + 12151.

It is an arithmetic number, because the mean of its divisors is an integer number (2580732).

Almost surely, 2^67604320 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 67604320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92906352).

67604320 is an abundant number, since it is smaller than the sum of its proper divisors (118208384).

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

67604320 is a wasteful number, since it uses less digits than its factorization.

67604320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8652 (or 8637 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 67604320 is about 8222.1846245387. The cubic root of 67604320 is about 407.3722886329.

Adding to 67604320 its reverse (2340676), we get a palindrome (69944996).

The spelling of 67604320 in words is "sixty-seven million, six hundred four thousand, three hundred twenty".