20427322 has 16 divisors (see below), whose sum is σ = 31505760. Its totient is φ = 9927792.

The previous prime is 20427317. The next prime is 20427331. The reversal of 20427322 is 22372402.

It is a junction number, because it is equal to n+sod(n) for n = 20427293 and 20427302.

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, 22693 + ... + 23575.

It is an arithmetic number, because the mean of its divisors is an integer number (1969110).

Almost surely, 2^20427322 is an apocalyptic number.

20427322 is a deficient number, since it is larger than the sum of its proper divisors (11078438).

20427322 is a wasteful number, since it uses less digits than its factorization.

20427322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20427322 is about 4519.6595004491. The cubic root of 20427322 is about 273.3613716363.

Adding to 20427322 its reverse (22372402), we get a palindrome (42799724).

The spelling of 20427322 in words is "twenty million, four hundred twenty-seven thousand, three hundred twenty-two".