20423324 has 12 divisors (see below), whose sum is σ = 37843344. Its totient is φ = 9610944.

The previous prime is 20423257. The next prime is 20423329. The reversal of 20423324 is 42332402.

It is a super-2 number, since 2×20423324² = 834224326417952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20423296 and 20423305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150104 + ... + 150239.

It is an arithmetic number, because the mean of its divisors is an integer number (3153612).

Almost surely, 2^20423324 is an apocalyptic number.

It is an amenable number.

20423324 is a deficient number, since it is larger than the sum of its proper divisors (17420020).

20423324 is a wasteful number, since it uses less digits than its factorization.

20423324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300364 (or 300362 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20423324 is about 4519.2171888503. The cubic root of 20423324 is about 273.3435365350.

Adding to 20423324 its reverse (42332402), we get a palindrome (62755726).

The spelling of 20423324 in words is "twenty million, four hundred twenty-three thousand, three hundred twenty-four".