20941488 has 60 divisors (see below), whose sum is σ = 60053448. Its totient is φ = 6808320.

The previous prime is 20941471. The next prime is 20941489. The reversal of 20941488 is 88414902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20941489) 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 11 ways as a sum of consecutive naturals, for example, 4131 + ... + 7677.

Almost surely, 2^20941488 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 20941488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30026724).

20941488 is an abundant number, since it is smaller than the sum of its proper divisors (39111960).

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

20941488 is a wasteful number, since it uses less digits than its factorization.

20941488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 20941488 is about 4576.1870591137. The cubic root of 20941488 is about 275.6359409173.

The spelling of 20941488 in words is "twenty million, nine hundred forty-one thousand, four hundred eighty-eight".