223520100040 has 16 divisors (see below), whose sum is σ = 502920225180. Its totient is φ = 89408040000.

The previous prime is 223520100031. The next prime is 223520100047. The reversal of 223520100040 is 40001025322.

It can be written as a sum of positive squares in 2 ways, for example, as 210591045604 + 12929054436 = 458902^2 + 113706^2 .

It is a super-2 number, since 2×223520100040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223520099990 and 223520100017.

It is not an unprimeable number, because it can be changed into a prime (223520100047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2794001211 + ... + 2794001290.

Almost surely, 2^223520100040 is an apocalyptic number.

223520100040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223520100040 is an abundant number, since it is smaller than the sum of its proper divisors (279400125140).

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

223520100040 is a wasteful number, since it uses less digits than its factorization.

223520100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588002512 (or 5588002508 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 223520100040 its reverse (40001025322), we get a palindrome (263521125362).

The spelling of 223520100040 in words is "two hundred twenty-three billion, five hundred twenty million, one hundred thousand, forty".