20333424420 has 72 divisors (see below), whose sum is σ = 61694942400. Its totient is φ = 5420761920.

The previous prime is 20333424373. The next prime is 20333424437. The reversal of 20333424420 is 2442433302.

20333424420 is a `hidden beast` number, since 203 + 3 + 34 + 2 + 4 + 420 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 748231 + ... + 774929.

It is an arithmetic number, because the mean of its divisors is an integer number (856874200).

Almost surely, 2^20333424420 is an apocalyptic number.

20333424420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20333424420 is an abundant number, since it is smaller than the sum of its proper divisors (41361517980).

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

20333424420 is a wasteful number, since it uses less digits than its factorization.

20333424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30945 (or 30940 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20333424420 its reverse (2442433302), we get a palindrome (22775857722).

The spelling of 20333424420 in words is "twenty billion, three hundred thirty-three million, four hundred twenty-four thousand, four hundred twenty".