20404224030 has 64 divisors (see below), whose sum is σ = 49231930176. Its totient is φ = 5412096000.

The previous prime is 20404224023. The next prime is 20404224037. The reversal of 20404224030 is 3042240402.

It is an interprime number because it is at equal distance from previous prime (20404224023) and next prime (20404224037).

It is a junction number, because it is equal to n+sod(n) for n = 20404223988 and 20404224006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404224037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11718960 + ... + 11720700.

It is an arithmetic number, because the mean of its divisors is an integer number (769248909).

Almost surely, 2^20404224030 is an apocalyptic number.

20404224030 is an abundant number, since it is smaller than the sum of its proper divisors (28827706146).

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

20404224030 is a wasteful number, since it uses less digits than its factorization.

20404224030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20404224030 its reverse (3042240402), we get a palindrome (23446464432).

The spelling of 20404224030 in words is "twenty billion, four hundred four million, two hundred twenty-four thousand, thirty".