20223503840 has 48 divisors (see below), whose sum is σ = 47788120800. Its totient is φ = 8087692800.

The previous prime is 20223503813. The next prime is 20223503843. The reversal of 20223503840 is 4830532202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223503843) 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, 973886 + ... + 994434.

It is an arithmetic number, because the mean of its divisors is an integer number (995585850).

Almost surely, 2^20223503840 is an apocalyptic number.

20223503840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20223503840 is an abundant number, since it is smaller than the sum of its proper divisors (27564616960).

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

20223503840 is a wasteful number, since it uses less digits than its factorization.

20223503840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26715 (or 26707 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20223503840 in words is "twenty billion, two hundred twenty-three million, five hundred three thousand, eight hundred forty".