20432242 has 8 divisors (see below), whose sum is σ = 31226796. Its totient is φ = 10023312.

The previous prime is 20432233. The next prime is 20432261. The reversal of 20432242 is 24223402.

It can be written as a sum of positive squares in 2 ways, for example, as 15848361 + 4583881 = 3981^2 + 2141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 96273 + ... + 96484.

Almost surely, 2^20432242 is an apocalyptic number.

20432242 is a deficient number, since it is larger than the sum of its proper divisors (10794554).

20432242 is a wasteful number, since it uses less digits than its factorization.

20432242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192812.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20432242 is about 4520.2037564694. The cubic root of 20432242 is about 273.3833165913.

Adding to 20432242 its reverse (24223402), we get a palindrome (44655644).

The spelling of 20432242 in words is "twenty million, four hundred thirty-two thousand, two hundred forty-two".