20966488 has 8 divisors (see below), whose sum is σ = 39312180. Its totient is φ = 10483240.

The previous prime is 20966479. The next prime is 20966537. The reversal of 20966488 is 88466902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310398 + ... + 1310413.

Almost surely, 2^20966488 is an apocalyptic number.

It is an amenable number.

20966488 is a deficient number, since it is larger than the sum of its proper divisors (18345692).

20966488 is a wasteful number, since it uses less digits than its factorization.

20966488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620817 (or 2620813 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 20966488 is about 4578.9177760689. The cubic root of 20966488 is about 275.7455822541.

The spelling of 20966488 in words is "twenty million, nine hundred sixty-six thousand, four hundred eighty-eight".