20415022 has 8 divisors (see below), whose sum is σ = 31010400. Its totient is φ = 10078224.

The previous prime is 20415013. The next prime is 20415037. The reversal of 20415022 is 22051402.

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

It is a junction number, because it is equal to n+sod(n) for n = 20414987 and 20415005.

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, 64447 + ... + 64762.

It is an arithmetic number, because the mean of its divisors is an integer number (3876300).

Almost surely, 2^20415022 is an apocalyptic number.

20415022 is a deficient number, since it is larger than the sum of its proper divisors (10595378).

20415022 is a wasteful number, since it uses less digits than its factorization.

20415022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129290.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20415022 is about 4518.2985735783. The cubic root of 20415022 is about 273.3064938284.

Adding to 20415022 its reverse (22051402), we get a palindrome (42466424).

The spelling of 20415022 in words is "twenty million, four hundred fifteen thousand, twenty-two".