68460220 has 12 divisors (see below), whose sum is σ = 143766504. Its totient is φ = 27384080.

The previous prime is 68460199. The next prime is 68460233. The reversal of 68460220 is 2206486.

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 3 ways as a sum of consecutive naturals, for example, 1711486 + ... + 1711525.

It is an arithmetic number, because the mean of its divisors is an integer number (11980542).

Almost surely, 2^68460220 is an apocalyptic number.

It is an amenable number.

68460220 is an abundant number, since it is smaller than the sum of its proper divisors (75306284).

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

68460220 is a wasteful number, since it uses less digits than its factorization.

68460220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423020 (or 3423018 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 68460220 is about 8274.0691319326. The cubic root of 68460220 is about 409.0842540182.

The spelling of 68460220 in words is "sixty-eight million, four hundred sixty thousand, two hundred twenty".