223450402540 has 12 divisors (see below), whose sum is σ = 469245845376. Its totient is φ = 89380161008.

The previous prime is 223450402529. The next prime is 223450402561. The reversal of 223450402540 is 45204054322.

223450402540 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 5586260044 + ... + 5586260083.

It is an arithmetic number, because the mean of its divisors is an integer number (39103820448).

Almost surely, 2^223450402540 is an apocalyptic number.

223450402540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223450402540 is an abundant number, since it is smaller than the sum of its proper divisors (245795442836).

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

223450402540 is a wasteful number, since it uses less digits than its factorization.

223450402540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11172520136 (or 11172520134 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 223450402540 its reverse (45204054322), we get a palindrome (268654456862).

The spelling of 223450402540 in words is "two hundred twenty-three billion, four hundred fifty million, four hundred two thousand, five hundred forty".