67828220 has 24 divisors (see below), whose sum is σ = 143911824. Its totient is φ = 26850816.

The previous prime is 67828207. The next prime is 67828223. The reversal of 67828220 is 2282876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67828223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15542 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (5996326).

Almost surely, 2^67828220 is an apocalyptic number.

It is an amenable number.

67828220 is an abundant number, since it is smaller than the sum of its proper divisors (76083604).

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

67828220 is a wasteful number, since it uses less digits than its factorization.

67828220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35069 (or 35067 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 67828220 is about 8235.7889725272. The cubic root of 67828220 is about 407.8215210005.

The spelling of 67828220 in words is "sixty-seven million, eight hundred twenty-eight thousand, two hundred twenty".