20411952 has 80 divisors (see below), whose sum is σ = 58484352. Its totient is φ = 6082560.

The previous prime is 20411927. The next prime is 20411953. The reversal of 20411952 is 25911402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20411953) 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, 35088 + ... + 35664.

Almost surely, 2^20411952 is an apocalyptic number.

20411952 is a gapful number since it is divisible by the number (22) 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 20411952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29242176).

20411952 is an abundant number, since it is smaller than the sum of its proper divisors (38072400).

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

20411952 is a wasteful number, since it uses less digits than its factorization.

20411952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 20411952 is about 4517.9588311537. The cubic root of 20411952 is about 273.2927932472.

It can be divided in two parts, 2041 and 1952, that added together give a palindrome (3993).

The spelling of 20411952 in words is "twenty million, four hundred eleven thousand, nine hundred fifty-two".