20863160 has 32 divisors (see below), whose sum is σ = 47196000. Its totient is φ = 8300160.

The previous prime is 20863147. The next prime is 20863169. The reversal of 20863160 is 6136802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20863169) 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, 6650 + ... + 9270.

It is an arithmetic number, because the mean of its divisors is an integer number (1474875).

Almost surely, 2^20863160 is an apocalyptic number.

20863160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20863160 is an abundant number, since it is smaller than the sum of its proper divisors (26332840).

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

20863160 is a wasteful number, since it uses less digits than its factorization.

20863160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20863160 is about 4567.6208248934. The cubic root of 20863160 is about 275.2918554357.

Adding to 20863160 its reverse (6136802), we get a palindrome (26999962).

The spelling of 20863160 in words is "twenty million, eight hundred sixty-three thousand, one hundred sixty".