20371322 has 8 divisors (see below), whose sum is σ = 30582900. Its totient is φ = 10177024.

The previous prime is 20371319. The next prime is 20371327. The reversal of 20371322 is 22317302.

It can be written as a sum of positive squares in 2 ways, for example, as 20349121 + 22201 = 4511^2 + 149^2 .

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 = 20371294 and 20371303.

It is not an unprimeable number, because it can be changed into a prime (20371327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797 + ... + 6432.

Almost surely, 2^20371322 is an apocalyptic number.

20371322 is a deficient number, since it is larger than the sum of its proper divisors (10211578).

20371322 is a wasteful number, since it uses less digits than its factorization.

20371322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8640.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20371322 is about 4513.4600917699. The cubic root of 20371322 is about 273.1113429907. Note that the first 3 decimals are identical.

Adding to 20371322 its reverse (22317302), we get a palindrome (42688624).

The spelling of 20371322 in words is "twenty million, three hundred seventy-one thousand, three hundred twenty-two".