20368242 has 12 divisors (see below), whose sum is σ = 44131230. Its totient is φ = 6789408.

The previous prime is 20368223. The next prime is 20368253. The reversal of 20368242 is 24286302.

It can be written as a sum of positive squares in only one way, i.e., 10949481 + 9418761 = 3309^2 + 3069^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565767 + ... + 565802.

Almost surely, 2^20368242 is an apocalyptic number.

20368242 is an abundant number, since it is smaller than the sum of its proper divisors (23762988).

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

20368242 is a wasteful number, since it uses less digits than its factorization.

20368242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131577 (or 1131574 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20368242 is about 4513.1188772289. The cubic root of 20368242 is about 273.0975781283.

The spelling of 20368242 in words is "twenty million, three hundred sixty-eight thousand, two hundred forty-two".