67424228 has 12 divisors (see below), whose sum is σ = 118140540. Its totient is φ = 33669792.

The previous prime is 67424219. The next prime is 67424233. The reversal of 67424228 is 82242476.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54878464 + 12545764 = 7408^2 + 3542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6851 + ... + 13482.

It is an arithmetic number, because the mean of its divisors is an integer number (9845045).

Almost surely, 2^67424228 is an apocalyptic number.

It is an amenable number.

67424228 is a deficient number, since it is larger than the sum of its proper divisors (50716312).

67424228 is a wasteful number, since it uses less digits than its factorization.

67424228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21166 (or 21164 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 67424228 is about 8211.2257306690. The cubic root of 67424228 is about 407.0102322223.

The spelling of 67424228 in words is "sixty-seven million, four hundred twenty-four thousand, two hundred twenty-eight".