20601868 has 12 divisors (see below), whose sum is σ = 41203792. Its totient is φ = 8829360.

The previous prime is 20601853. The next prime is 20601877. The reversal of 20601868 is 86810602.

20601868 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367863 + ... + 367918.

Almost surely, 2^20601868 is an apocalyptic number.

20601868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20601868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20601868 is a wasteful number, since it uses less digits than its factorization.

20601868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735792 (or 735790 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20601868 is about 4538.9280672864. The cubic root of 20601868 is about 274.1377643838.

The spelling of 20601868 in words is "twenty million, six hundred one thousand, eight hundred sixty-eight".