33004220420 has 48 divisors (see below), whose sum is σ = 70840063728. Its totient is φ = 12911608320.

The previous prime is 33004220419. The next prime is 33004220437. The reversal of 33004220420 is 2402240033.

It can be written as a sum of positive squares in 8 ways, for example, as 7158513664 + 25845706756 = 84608^2 + 160766^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33004220392 and 33004220401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286910 + ... + 385130.

It is an arithmetic number, because the mean of its divisors is an integer number (1475834661).

Almost surely, 2^33004220420 is an apocalyptic number.

It is an amenable number.

33004220420 is an abundant number, since it is smaller than the sum of its proper divisors (37835843308).

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

33004220420 is a wasteful number, since it uses less digits than its factorization.

33004220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98600 (or 98598 counting only the distinct ones).

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

Adding to 33004220420 its reverse (2402240033), we get a palindrome (35406460453).

The spelling of 33004220420 in words is "thirty-three billion, four million, two hundred twenty thousand, four hundred twenty".