20004253224 has 16 divisors (see below), whose sum is σ = 50010633120. Its totient is φ = 6668084400.

The previous prime is 20004253219. The next prime is 20004253237. The reversal of 20004253224 is 42235240002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 833510551 = 20004253224 / (2 + 0 + 0 + 0 + 4 + 2 + 5 + 3 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 20004253194 and 20004253203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416755252 + ... + 416755299.

It is an arithmetic number, because the mean of its divisors is an integer number (3125664570).

Almost surely, 2^20004253224 is an apocalyptic number.

20004253224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20004253224 is an abundant number, since it is smaller than the sum of its proper divisors (30006379896).

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

20004253224 is a wasteful number, since it uses less digits than its factorization.

20004253224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833510560 (or 833510556 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 20004253224 its reverse (42235240002), we get a palindrome (62239493226).

The spelling of 20004253224 in words is "twenty billion, four million, two hundred fifty-three thousand, two hundred twenty-four".