67280256 has 48 divisors (see below), whose sum is σ = 193609260. Its totient is φ = 22426368.

The previous prime is 67280243. The next prime is 67280263. The reversal of 67280256 is 65208276.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 67280256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28050 + ... + 30353.

Almost surely, 2^67280256 is an apocalyptic number.

It is an amenable number.

67280256 is an abundant number, since it is smaller than the sum of its proper divisors (126329004).

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

67280256 is a wasteful number, since it uses less digits than its factorization.

67280256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58423 (or 58408 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 67280256 is about 8202.4542668643. The cubic root of 67280256 is about 406.7203273572.

The spelling of 67280256 in words is "sixty-seven million, two hundred eighty thousand, two hundred fifty-six".