22533432420 has 24 divisors (see below), whose sum is σ = 63093610944. Its totient is φ = 6008915296.

The previous prime is 22533432409. The next prime is 22533432421. The reversal of 22533432420 is 2423433522.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22533432421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187778544 + ... + 187778663.

It is an arithmetic number, because the mean of its divisors is an integer number (2628900456).

Almost surely, 2^22533432420 is an apocalyptic number.

22533432420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22533432420 is an abundant number, since it is smaller than the sum of its proper divisors (40560178524).

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

22533432420 is a wasteful number, since it uses less digits than its factorization.

22533432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375557219 (or 375557217 counting only the distinct ones).

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

Adding to 22533432420 its reverse (2423433522), we get a palindrome (24956865942).

The spelling of 22533432420 in words is "twenty-two billion, five hundred thirty-three million, four hundred thirty-two thousand, four hundred twenty".