20222496 has 108 divisors (see below), whose sum is σ = 66943422. Its totient is φ = 5773824.

The previous prime is 20222473. The next prime is 20222557. The reversal of 20222496 is 69422202.

It can be written as a sum of positive squares in only one way, i.e., 14288400 + 5934096 = 3780^2 + 2436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13396 + ... + 14828.

Almost surely, 2^20222496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33471711).

20222496 is an abundant number, since it is smaller than the sum of its proper divisors (46720926).

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

20222496 is a wasteful number, since it uses less digits than its factorization.

20222496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20222496 is about 4496.9429616129. The cubic root of 20222496 is about 272.4446303347. Note that the first 3 decimals are identical.

Adding to 20222496 its reverse (69422202), we get a palindrome (89644698).

The spelling of 20222496 in words is "twenty million, two hundred twenty-two thousand, four hundred ninety-six".