20220346 has 8 divisors (see below), whose sum is σ = 30349620. Its totient is φ = 10103808.

The previous prime is 20220331. The next prime is 20220349. The reversal of 20220346 is 64302202.

It can be written as a sum of positive squares in 2 ways, for example, as 19847025 + 373321 = 4455^2 + 611^2 .

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

It is a super-4 number, since 4×20220346⁴ (a number of 30 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20220349) 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, 4410 + ... + 7738.

Almost surely, 2^20220346 is an apocalyptic number.

20220346 is a deficient number, since it is larger than the sum of its proper divisors (10129274).

20220346 is a wasteful number, since it uses less digits than its factorization.

20220346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20220346 is about 4496.7039039723. The cubic root of 20220346 is about 272.4349748053.

Adding to 20220346 its reverse (64302202), we get a palindrome (84522548).

The spelling of 20220346 in words is "twenty million, two hundred twenty thousand, three hundred forty-six".