20502422 has 8 divisors (see below), whose sum is σ = 30772872. Its totient is φ = 10244800.

The previous prime is 20502401. The next prime is 20502479. The reversal of 20502422 is 22420502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20502422.

It is a congruent number.

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, 4397 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (3846609).

Almost surely, 2^20502422 is an apocalyptic number.

20502422 is a deficient number, since it is larger than the sum of its proper divisors (10270450).

20502422 is a wasteful number, since it uses less digits than its factorization.

20502422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6414.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20502422 is about 4527.9600263253. The cubic root of 20502422 is about 273.6959616165.

Adding to 20502422 its reverse (22420502), we get a palindrome (42922924).

The spelling of 20502422 in words is "twenty million, five hundred two thousand, four hundred twenty-two".