67022020 has 72 divisors (see below), whose sum is σ = 154949760. Its totient is φ = 24336000.

The previous prime is 67022017. The next prime is 67022027. The reversal of 67022020 is 2022076.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67022027) 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, 266895 + ... + 267145.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 2^67022020 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 67022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77474880).

67022020 is an abundant number, since it is smaller than the sum of its proper divisors (87927740).

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

67022020 is a wasteful number, since it uses less digits than its factorization.

67022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 67022020 is about 8186.6977469551. The cubic root of 67022020 is about 406.1993003397.

Adding to 67022020 its reverse (2022076), we get a palindrome (69044096).

The spelling of 67022020 in words is "sixty-seven million, twenty-two thousand, twenty".