67228290 has 24 divisors (see below), whose sum is σ = 174793788. Its totient is φ = 17927520.

The previous prime is 67228261. The next prime is 67228303. The reversal of 67228290 is 9282276.

It can be written as a sum of positive squares in 2 ways, for example, as 67125249 + 103041 = 8193^2 + 321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373401 + ... + 373580.

Almost surely, 2^67228290 is an apocalyptic number.

67228290 is an abundant number, since it is smaller than the sum of its proper divisors (107565498).

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

67228290 is a wasteful number, since it uses less digits than its factorization.

67228290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746994 (or 746991 counting only the distinct ones).

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

The square root of 67228290 is about 8199.2859445198. The cubic root of 67228290 is about 406.6155860175.

The spelling of 67228290 in words is "sixty-seven million, two hundred twenty-eight thousand, two hundred ninety".