20410432 has 56 divisors (see below), whose sum is σ = 47914560. Its totient is φ = 8440320.

The previous prime is 20410409. The next prime is 20410433. The reversal of 20410432 is 23401402.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20410433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12207 + ... + 13777.

Almost surely, 2^20410432 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 20410432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23957280).

20410432 is an abundant number, since it is smaller than the sum of its proper divisors (27504128).

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

20410432 is a wasteful number, since it uses less digits than its factorization.

20410432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20410432 is about 4517.7906104644. The cubic root of 20410432 is about 273.2860093891.

Adding to 20410432 its reverse (23401402), we get a palindrome (43811834).

The spelling of 20410432 in words is "twenty million, four hundred ten thousand, four hundred thirty-two".