20422360 has 32 divisors (see below), whose sum is σ = 52515360. Its totient is φ = 7001856.

The previous prime is 20422357. The next prime is 20422421. The reversal of 20422360 is 6322402.

It is a congruent 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, 36189 + ... + 36748.

It is an arithmetic number, because the mean of its divisors is an integer number (1641105).

Almost surely, 2^20422360 is an apocalyptic number.

20422360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422360 is an abundant number, since it is smaller than the sum of its proper divisors (32093000).

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

20422360 is a wasteful number, since it uses less digits than its factorization.

20422360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72955 (or 72951 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20422360 is about 4519.1105319521. The cubic root of 20422360 is about 273.3392357771.

Adding to 20422360 its reverse (6322402), we get a palindrome (26744762).

The spelling of 20422360 in words is "twenty million, four hundred twenty-two thousand, three hundred sixty".