20935488 has 112 divisors (see below), whose sum is σ = 65170304. Its totient is φ = 5806080.

The previous prime is 20935487. The next prime is 20935489. The reversal of 20935488 is 88453902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20935487) and next prime (20935489).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20935487) by changing a digit.

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, 49518 + ... + 49938.

Almost surely, 2^20935488 is an apocalyptic number.

20935488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20935488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32585152).

20935488 is an abundant number, since it is smaller than the sum of its proper divisors (44234816).

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

20935488 is a wasteful number, since it uses less digits than its factorization.

20935488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 20935488 is about 4575.5314445428. The cubic root of 20935488 is about 275.6096140135.

The spelling of 20935488 in words is "twenty million, nine hundred thirty-five thousand, four hundred eighty-eight".