20881035 has 48 divisors (see below), whose sum is σ = 41733120. Its totient is φ = 9460800.

The previous prime is 20881027. The next prime is 20881067. The reversal of 20881035 is 53018802.

It is a happy number.

It is not a de Polignac number, because 20881035 - 2³ = 20881027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47346 + ... + 47784.

It is an arithmetic number, because the mean of its divisors is an integer number (869440).

Almost surely, 2^20881035 is an apocalyptic number.

20881035 is a deficient number, since it is larger than the sum of its proper divisors (20852085).

20881035 is a wasteful number, since it uses less digits than its factorization.

20881035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 20881035 is about 4569.5771139133. The cubic root of 20881035 is about 275.3704539036.

Adding to 20881035 its reverse (53018802), we get a palindrome (73899837).

The spelling of 20881035 in words is "twenty million, eight hundred eighty-one thousand, thirty-five".