223305515240 has 16 divisors (see below), whose sum is σ = 502437409380. Its totient is φ = 89322206080.

The previous prime is 223305515201. The next prime is 223305515243. The reversal of 223305515240 is 42515503322.

It can be written as a sum of positive squares in 2 ways, for example, as 221918250724 + 1387264516 = 471082^2 + 37246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223305515197 and 223305515206.

It is not an unprimeable number, because it can be changed into a prime (223305515243) 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, 2791318901 + ... + 2791318980.

Almost surely, 2^223305515240 is an apocalyptic number.

223305515240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223305515240 is an abundant number, since it is smaller than the sum of its proper divisors (279131894140).

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

223305515240 is a wasteful number, since it uses less digits than its factorization.

223305515240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582637892 (or 5582637888 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 223305515240 in words is "two hundred twenty-three billion, three hundred five million, five hundred fifteen thousand, two hundred forty".