67218352 has 40 divisors (see below), whose sum is σ = 140459760. Its totient is φ = 31057920.

The previous prime is 67218337. The next prime is 67218367. The reversal of 67218352 is 25381276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67218337) and next prime (67218367).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9768 + ... + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (3511494).

Almost surely, 2^67218352 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 67218352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70229880).

67218352 is an abundant number, since it is smaller than the sum of its proper divisors (73241408).

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

67218352 is a wasteful number, since it uses less digits than its factorization.

67218352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461 (or 5455 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 67218352 is about 8198.6798937390. The cubic root of 67218352 is about 406.5955490914.

The spelling of 67218352 in words is "sixty-seven million, two hundred eighteen thousand, three hundred fifty-two".