20456322 has 8 divisors (see below), whose sum is σ = 40912656. Its totient is φ = 6818772.

The previous prime is 20456309. The next prime is 20456323. The reversal of 20456322 is 22365402.

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

20456322 is an admirable number.

It is a super-2 number, since 2×20456322² = 836922219535368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20456292 and 20456301.

It is not an unprimeable number, because it can be changed into a prime (20456323) 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, 1704688 + ... + 1704699.

It is an arithmetic number, because the mean of its divisors is an integer number (5114082).

Almost surely, 2^20456322 is an apocalyptic number.

20456322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20456322 is a wasteful number, since it uses less digits than its factorization.

20456322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409392.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20456322 is about 4522.8665688919. The cubic root of 20456322 is about 273.4906711968.

The spelling of 20456322 in words is "twenty million, four hundred fifty-six thousand, three hundred twenty-two".