20438882 has 16 divisors (see below), whose sum is σ = 31135104. Its totient is φ = 10062000.

The previous prime is 20438863. The next prime is 20438909. The reversal of 20438882 is 28883402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47207 + ... + 47637.

It is an arithmetic number, because the mean of its divisors is an integer number (1945944).

Almost surely, 2^20438882 is an apocalyptic number.

20438882 is a deficient number, since it is larger than the sum of its proper divisors (10696222).

20438882 is a wasteful number, since it uses less digits than its factorization.

20438882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 20438882 is about 4520.9381769717. The cubic root of 20438882 is about 273.4129277750.

The spelling of 20438882 in words is "twenty million, four hundred thirty-eight thousand, eight hundred eighty-two".