222504624540 has 384 divisors, whose sum is σ = 782587008000. Its totient is φ = 51988608000.

The previous prime is 222504624487. The next prime is 222504624541. The reversal of 222504624540 is 45426405222.

222504624540 is a `hidden beast` number, since 2 + 2 + 2 + 50 + 4 + 62 + 4 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 222504624495 and 222504624504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222504624541) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 181044646 + ... + 181045874.

It is an arithmetic number, because the mean of its divisors is an integer number (2037987000).

Almost surely, 2^222504624540 is an apocalyptic number.

222504624540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222504624540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391293504000).

222504624540 is an abundant number, since it is smaller than the sum of its proper divisors (560082383460).

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

222504624540 is a wasteful number, since it uses less digits than its factorization.

222504624540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 222504624540 in words is "two hundred twenty-two billion, five hundred four million, six hundred twenty-four thousand, five hundred forty".