20333424540 has 96 divisors (see below), whose sum is σ = 66887041536. Its totient is φ = 4550135040.

The previous prime is 20333424533. The next prime is 20333424581. The reversal of 20333424540 is 4542433302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 20333424498 and 20333424507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1176352 + ... + 1193511.

It is an arithmetic number, because the mean of its divisors is an integer number (696740016).

Almost surely, 2^20333424540 is an apocalyptic number.

20333424540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20333424540 is an abundant number, since it is smaller than the sum of its proper divisors (46553616996).

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

20333424540 is a wasteful number, since it uses less digits than its factorization.

20333424540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369899 (or 2369897 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 20333424540 its reverse (4542433302), we get a palindrome (24875857842).

The spelling of 20333424540 in words is "twenty billion, three hundred thirty-three million, four hundred twenty-four thousand, five hundred forty".