67728260 has 24 divisors (see below), whose sum is σ = 142500120. Its totient is φ = 27039744.

The previous prime is 67728259. The next prime is 67728281. The reversal of 67728260 is 6282776.

It can be written as a sum of positive squares in 4 ways, for example, as 12166144 + 55562116 = 3488^2 + 7454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606 + ... + 14474.

It is an arithmetic number, because the mean of its divisors is an integer number (5937505).

Almost surely, 2^67728260 is an apocalyptic number.

It is an amenable number.

67728260 is an abundant number, since it is smaller than the sum of its proper divisors (74771860).

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

67728260 is a wasteful number, since it uses less digits than its factorization.

67728260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 67728260 is about 8229.7180996678. The cubic root of 67728260 is about 407.6210838692.

The spelling of 67728260 in words is "sixty-seven million, seven hundred twenty-eight thousand, two hundred sixty".