20732268 has 24 divisors (see below), whose sum is σ = 50921920. Its totient is φ = 6546960.

The previous prime is 20732263. The next prime is 20732281. The reversal of 20732268 is 86223702.

It is not an unprimeable number, because it can be changed into a prime (20732263) 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, 45238 + ... + 45693.

Almost surely, 2^20732268 is an apocalyptic number.

It is an amenable number.

20732268 is an abundant number, since it is smaller than the sum of its proper divisors (30189652).

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

20732268 is a wasteful number, since it uses less digits than its factorization.

20732268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90957 (or 90955 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20732268 is about 4553.2700337230. The cubic root of 20732268 is about 274.7149354587.

The spelling of 20732268 in words is "twenty million, seven hundred thirty-two thousand, two hundred sixty-eight".