20300442 has 16 divisors (see below), whose sum is σ = 40922112. Its totient is φ = 6713280.

The previous prime is 20300419. The next prime is 20300459. The reversal of 20300442 is 24400302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12559 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (2557632).

Almost surely, 2^20300442 is an apocalyptic number.

20300442 is an abundant number, since it is smaller than the sum of its proper divisors (20621670).

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

20300442 is a wasteful number, since it uses less digits than its factorization.

20300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26773.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20300442 is about 4505.6011807527. The cubic root of 20300442 is about 272.7942202718.

Adding to 20300442 its reverse (24400302), we get a palindrome (44700744).

The spelling of 20300442 in words is "twenty million, three hundred thousand, four hundred forty-two".