20220354 has 80 divisors (see below), whose sum is σ = 56523456. Its totient is φ = 5248800.

The previous prime is 20220353. The next prime is 20220359. The reversal of 20220354 is 45302202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20220353) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11664 + ... + 13284.

Almost surely, 2^20220354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28261728).

20220354 is an abundant number, since it is smaller than the sum of its proper divisors (36303102).

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

20220354 is a wasteful number, since it uses less digits than its factorization.

20220354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20220354 is about 4496.7047935127. The cubic root of 20220354 is about 272.4350107341.

Adding to 20220354 its reverse (45302202), we get a palindrome (65522556).

The spelling of 20220354 in words is "twenty million, two hundred twenty thousand, three hundred fifty-four".