20423341 has 8 divisors (see below), whose sum is σ = 21704760. Its totient is φ = 19217344.

The previous prime is 20423329. The next prime is 20423353. The reversal of 20423341 is 14332402.

It is an interprime number because it is at equal distance from previous prime (20423329) and next prime (20423353).

It can be written as a sum of positive squares in 4 ways, for example, as 3407716 + 17015625 = 1846^2 + 4125^2 .

It is not a de Polignac number, because 20423341 - 2⁷ = 20423213 is a prime.

It is a super-2 number, since 2×20423341² = 834225715204562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2835 + ... + 6991.

It is an arithmetic number, because the mean of its divisors is an integer number (2713095).

Almost surely, 2^20423341 is an apocalyptic number.

It is an amenable number.

20423341 is a deficient number, since it is larger than the sum of its proper divisors (1281419).

20423341 is an frugal number, since it uses more digits than its factorization.

20423341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208 (or 4174 counting only the distinct ones).

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

The square root of 20423341 is about 4519.2190697066. The cubic root of 20423341 is about 273.3436123770.

Adding to 20423341 its reverse (14332402), we get a palindrome (34755743).

The spelling of 20423341 in words is "twenty million, four hundred twenty-three thousand, three hundred forty-one".