20468877 has 16 divisors (see below), whose sum is σ = 32063808. Its totient is φ = 11450880.

The previous prime is 20468869. The next prime is 20468893. The reversal of 20468877 is 77886402.

It is not a de Polignac number, because 20468877 - 2³ = 20468869 is a prime.

It is a super-2 number, since 2×20468877² = 837949851282258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468837) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23428 + ... + 24285.

It is an arithmetic number, because the mean of its divisors is an integer number (2003988).

Almost surely, 2^20468877 is an apocalyptic number.

It is an amenable number.

20468877 is a deficient number, since it is larger than the sum of its proper divisors (11594931).

20468877 is a wasteful number, since it uses less digits than its factorization.

20468877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47740.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 20468877 is about 4524.2543031974. The cubic root of 20468877 is about 273.5466110858.

The spelling of 20468877 in words is "twenty million, four hundred sixty-eight thousand, eight hundred seventy-seven".