222040624 has 40 divisors (see below), whose sum is σ = 465251472. Its totient is φ = 102048000.

The previous prime is 222040607. The next prime is 222040633. The reversal of 222040624 is 426040222.

It is a junction number, because it is equal to n+sod(n) for n = 222040595 and 222040604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50082 + ... + 54334.

Almost surely, 2^222040624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222040624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232625736).

222040624 is an abundant number, since it is smaller than the sum of its proper divisors (243210848).

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

222040624 is a wasteful number, since it uses less digits than its factorization.

222040624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525 (or 4519 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 222040624 is about 14901.0276155707. The cubic root of 222040624 is about 605.5418263787.

Adding to 222040624 its reverse (426040222), we get a palindrome (648080846).

The spelling of 222040624 in words is "two hundred twenty-two million, forty thousand, six hundred twenty-four".