20214324 has 72 divisors (see below), whose sum is σ = 56259840. Its totient is φ = 6080832.

The previous prime is 20214323. The next prime is 20214329. The reversal of 20214324 is 42341202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20214297 and 20214306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21537 + ... + 22455.

Almost surely, 2^20214324 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 20214324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28129920).

20214324 is an abundant number, since it is smaller than the sum of its proper divisors (36045516).

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

20214324 is a wasteful number, since it uses less digits than its factorization.

20214324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20214324 is about 4496.0342525386. The cubic root of 20214324 is about 272.4079266972.

Adding to 20214324 its reverse (42341202), we get a palindrome (62555526).

The spelling of 20214324 in words is "twenty million, two hundred fourteen thousand, three hundred twenty-four".