20967268 has 12 divisors (see below), whose sum is σ = 41934592. Its totient is φ = 8985960.

The previous prime is 20967259. The next prime is 20967269. The reversal of 20967268 is 86276902.

20967268 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20967268.

It is not an unprimeable number, because it can be changed into a prime (20967269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374388 + ... + 374443.

Almost surely, 2^20967268 is an apocalyptic number.

20967268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20967268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20967268 is a wasteful number, since it uses less digits than its factorization.

20967268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748842 (or 748840 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 20967268 is about 4579.0029482410. The cubic root of 20967268 is about 275.7490016614.

The spelling of 20967268 in words is "twenty million, nine hundred sixty-seven thousand, two hundred sixty-eight".