40223113520 has 20 divisors (see below), whose sum is σ = 93518739120. Its totient is φ = 16089245376.

The previous prime is 40223113501. The next prime is 40223113531. The reversal of 40223113520 is 2531132204.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×40223113520² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251394380 + ... + 251394539.

It is an arithmetic number, because the mean of its divisors is an integer number (4675936956).

Almost surely, 2^40223113520 is an apocalyptic number.

40223113520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40223113520 is an abundant number, since it is smaller than the sum of its proper divisors (53295625600).

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

40223113520 is a wasteful number, since it uses less digits than its factorization.

40223113520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502788932 (or 502788926 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40223113520 its reverse (2531132204), we get a palindrome (42754245724).

The spelling of 40223113520 in words is "forty billion, two hundred twenty-three million, one hundred thirteen thousand, five hundred twenty".