23554442420 has 24 divisors (see below), whose sum is σ = 49467275424. Its totient is φ = 9421215776.

The previous prime is 23554442419. The next prime is 23554442449. The reversal of 23554442420 is 2424445532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535379 + ... + 577701.

It is an arithmetic number, because the mean of its divisors is an integer number (2061136476).

Almost surely, 2^23554442420 is an apocalyptic number.

23554442420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23554442420 is an abundant number, since it is smaller than the sum of its proper divisors (25912833004).

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

23554442420 is a wasteful number, since it uses less digits than its factorization.

23554442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70159 (or 70157 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 23554442420 its reverse (2424445532), we get a palindrome (25978887952).

The spelling of 23554442420 in words is "twenty-three billion, five hundred fifty-four million, four hundred forty-two thousand, four hundred twenty".