20888196 has 48 divisors (see below), whose sum is σ = 57007104. Its totient is φ = 5828256.

The previous prime is 20888177. The next prime is 20888213. The reversal of 20888196 is 69188802.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 721 + ... + 6503.

It is an arithmetic number, because the mean of its divisors is an integer number (1187648).

Almost surely, 2^20888196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20888196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28503552).

20888196 is an abundant number, since it is smaller than the sum of its proper divisors (36118908).

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

20888196 is a wasteful number, since it uses less digits than its factorization.

20888196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840 (or 5838 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 20888196 is about 4570.3605984649. The cubic root of 20888196 is about 275.4019290746.

The spelling of 20888196 in words is "twenty million, eight hundred eighty-eight thousand, one hundred ninety-six".