20488422 has 32 divisors (see below), whose sum is σ = 43960320. Its totient is φ = 6346080.

The previous prime is 20488421. The next prime is 20488459. The reversal of 20488422 is 22488402.

It is a self number, because there is not a number n which added to its sum of digits gives 20488422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488421) 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, 4347 + ... + 7737.

It is an arithmetic number, because the mean of its divisors is an integer number (1373760).

Almost surely, 2^20488422 is an apocalyptic number.

20488422 is an abundant number, since it is smaller than the sum of its proper divisors (23471898).

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

20488422 is a wasteful number, since it uses less digits than its factorization.

20488422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468.

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 20488422 is about 4526.4138122801. The cubic root of 20488422 is about 273.6336500198.

It can be divided in two parts, 20488 and 422, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 20488422 in words is "twenty million, four hundred eighty-eight thousand, four hundred twenty-two".