67222890 has 48 divisors (see below), whose sum is σ = 199749888. Its totient is φ = 15365088.

The previous prime is 67222877. The next prime is 67222891. The reversal of 67222890 is 9822276.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67222891) 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, 52722 + ... + 53981.

It is an arithmetic number, because the mean of its divisors is an integer number (4161456).

Almost surely, 2^67222890 is an apocalyptic number.

67222890 is an abundant number, since it is smaller than the sum of its proper divisors (132526998).

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

67222890 is a wasteful number, since it uses less digits than its factorization.

67222890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106723 (or 106720 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 67222890 is about 8198.9566409391. The cubic root of 67222890 is about 406.6046988202.

The spelling of 67222890 in words is "sixty-seven million, two hundred twenty-two thousand, eight hundred ninety".