20411832 has 96 divisors (see below), whose sum is σ = 62914320. Its totient is φ = 5483520.

The previous prime is 20411801. The next prime is 20411843. The reversal of 20411832 is 23811402.

It is a super-3 number, since 3×20411832³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 20411799 and 20411808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19482 + ... + 20502.

Almost surely, 2^20411832 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 20411832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31457160).

20411832 is an abundant number, since it is smaller than the sum of its proper divisors (42502488).

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

20411832 is a wasteful number, since it uses less digits than its factorization.

20411832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20411832 is about 4517.9455508007. The cubic root of 20411832 is about 273.2922576917.

The spelling of 20411832 in words is "twenty million, four hundred eleven thousand, eight hundred thirty-two".