20432061 has 16 divisors (see below), whose sum is σ = 32598720. Its totient is φ = 12573360.

The previous prime is 20432059. The next prime is 20432077. The reversal of 20432061 is 16023402.

It is a happy number.

It is not a de Polignac number, because 20432061 - 2¹ = 20432059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28755 + ... + 29456.

It is an arithmetic number, because the mean of its divisors is an integer number (2037420).

Almost surely, 2^20432061 is an apocalyptic number.

It is an amenable number.

20432061 is a deficient number, since it is larger than the sum of its proper divisors (12166659).

20432061 is a wasteful number, since it uses less digits than its factorization.

20432061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58233 (or 58227 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20432061 is about 4520.1837352037. The cubic root of 20432061 is about 273.3825093291.

Adding to 20432061 its reverse (16023402), we get a palindrome (36455463).

The spelling of 20432061 in words is "twenty million, four hundred thirty-two thousand, sixty-one".