67022240 has 24 divisors (see below), whose sum is σ = 158340420. Its totient is φ = 26808832.

The previous prime is 67022239. The next prime is 67022243. The reversal of 67022240 is 4222076.

It can be written as a sum of positive squares in 2 ways, for example, as 60031504 + 6990736 = 7748^2 + 2644^2 .

It is not an unprimeable number, because it can be changed into a prime (67022243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209285 + ... + 209604.

Almost surely, 2^67022240 is an apocalyptic number.

It is an amenable number.

67022240 is an abundant number, since it is smaller than the sum of its proper divisors (91318180).

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

67022240 is a wasteful number, since it uses less digits than its factorization.

67022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418904 (or 418896 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 67022240 is about 8186.7111833752. The cubic root of 67022240 is about 406.1997447893.

The spelling of 67022240 in words is "sixty-seven million, twenty-two thousand, two hundred forty".