20488832 has 64 divisors (see below), whose sum is σ = 50265600. Its totient is φ = 8100864.

The previous prime is 20488823. The next prime is 20488843. The reversal of 20488832 is 23888402.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20488792 and 20488801.

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, 10769 + ... + 12527.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

Almost surely, 2^20488832 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 20488832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25132800).

20488832 is an abundant number, since it is smaller than the sum of its proper divisors (29776768).

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

20488832 is a wasteful number, since it uses less digits than its factorization.

20488832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1781 counting only the distinct ones).

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

The square root of 20488832 is about 4526.4591017704. The cubic root of 20488832 is about 273.6354752628.

The spelling of 20488832 in words is "twenty million, four hundred eighty-eight thousand, eight hundred thirty-two".