20881348 has 24 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 10114848.

The previous prime is 20881331. The next prime is 20881349. The reversal of 20881348 is 84318802.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20881349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19983 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (1570800).

Almost surely, 2^20881348 is an apocalyptic number.

It is an amenable number.

20881348 is a deficient number, since it is larger than the sum of its proper divisors (16817852).

20881348 is a wasteful number, since it uses less digits than its factorization.

20881348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 20881348 is about 4569.6113620307. The cubic root of 20881348 is about 275.3718298016.

The spelling of 20881348 in words is "twenty million, eight hundred eighty-one thousand, three hundred forty-eight".