20133404420 has 48 divisors (see below), whose sum is σ = 42471571968. Its totient is φ = 8016983040.

The previous prime is 20133404411. The next prime is 20133404477. The reversal of 20133404420 is 2440433102.

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, 4876397 + ... + 4880523.

It is an arithmetic number, because the mean of its divisors is an integer number (884824416).

Almost surely, 2^20133404420 is an apocalyptic number.

20133404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133404420 is an abundant number, since it is smaller than the sum of its proper divisors (22338167548).

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

20133404420 is a wasteful number, since it uses less digits than its factorization.

20133404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180 (or 5178 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20133404420 its reverse (2440433102), we get a palindrome (22573837522).

The spelling of 20133404420 in words is "twenty billion, one hundred thirty-three million, four hundred four thousand, four hundred twenty".