68000220 has 36 divisors (see below), whose sum is σ = 206267880. Its totient is φ = 18133344.

The previous prime is 68000209. The next prime is 68000239. The reversal of 68000220 is 2200086.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 68000193 and 68000202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188710 + ... + 189069.

Almost surely, 2^68000220 is an apocalyptic number.

68000220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68000220 is an abundant number, since it is smaller than the sum of its proper divisors (138267660).

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

68000220 is a wasteful number, since it uses less digits than its factorization.

68000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377794 (or 377789 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 68000220 is about 8246.2245906839. The cubic root of 68000220 is about 408.1659503698.

The spelling of 68000220 in words is "sixty-eight million, two hundred twenty", and thus it is an aban number.