67022220 has 48 divisors (see below), whose sum is σ = 189116928. Its totient is φ = 17734080.

The previous prime is 67022213. The next prime is 67022227. The reversal of 67022220 is 2222076.

It is an interprime number because it is at equal distance from previous prime (67022213) and next prime (67022227).

It is not an unprimeable number, because it can be changed into a prime (67022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597 + ... + 12123.

It is an arithmetic number, because the mean of its divisors is an integer number (3939936).

Almost surely, 2^67022220 is an apocalyptic number.

67022220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94558464).

67022220 is an abundant number, since it is smaller than the sum of its proper divisors (122094708).

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

67022220 is a wasteful number, since it uses less digits than its factorization.

67022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670 (or 8668 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 67022220 is about 8186.7099618833. The cubic root of 67022220 is about 406.1997043849.

Adding to 67022220 its reverse (2222076), we get a palindrome (69244296).

The spelling of 67022220 in words is "sixty-seven million, twenty-two thousand, two hundred twenty".