20411132 has 12 divisors (see below), whose sum is σ = 40822320. Its totient is φ = 8747616.

The previous prime is 20411129. The next prime is 20411141. The reversal of 20411132 is 23111402.

20411132 is an admirable number.

It is a super-2 number, since 2×20411132² = 833228619042848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364457 + ... + 364512.

It is an arithmetic number, because the mean of its divisors is an integer number (3401860).

Almost surely, 2^20411132 is an apocalyptic number.

It is an amenable number.

20411132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20411132 is a wasteful number, since it uses less digits than its factorization.

20411132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728980 (or 728978 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20411132 is about 4517.8680812968. The cubic root of 20411132 is about 273.2891335761.

Adding to 20411132 its reverse (23111402), we get a palindrome (43522534).

The spelling of 20411132 in words is "twenty million, four hundred eleven thousand, one hundred thirty-two".