67320528 has 120 divisors (see below), whose sum is σ = 195133344. Its totient is φ = 19979520.

The previous prime is 67320511. The next prime is 67320529. The reversal of 67320528 is 82502376.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67320529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389050 + ... + 389222.

Almost surely, 2^67320528 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 67320528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97566672).

67320528 is an abundant number, since it is smaller than the sum of its proper divisors (127812816).

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

67320528 is a wasteful number, since it uses less digits than its factorization.

67320528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 67320528 is about 8204.9087746300. The cubic root of 67320528 is about 406.8014614818.

The spelling of 67320528 in words is "sixty-seven million, three hundred twenty thousand, five hundred twenty-eight".