20766468 has 24 divisors (see below), whose sum is σ = 51005920. Its totient is φ = 6557760.

The previous prime is 20766467. The next prime is 20766479. The reversal of 20766468 is 86466702.

It is not an unprimeable number, because it can be changed into a prime (20766467) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45313 + ... + 45768.

Almost surely, 2^20766468 is an apocalyptic number.

It is an amenable number.

20766468 is an abundant number, since it is smaller than the sum of its proper divisors (30239452).

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

20766468 is a wasteful number, since it uses less digits than its factorization.

20766468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91107 (or 91105 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 20766468 is about 4557.0240289031. The cubic root of 20766468 is about 274.8659092833.

The spelling of 20766468 in words is "twenty million, seven hundred sixty-six thousand, four hundred sixty-eight".