222246624 has 24 divisors (see below), whose sum is σ = 583397640. Its totient is φ = 74082176.

The previous prime is 222246613. The next prime is 222246643. The reversal of 222246624 is 426642222.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222246591 and 222246600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157439 + ... + 1157630.

It is an arithmetic number, because the mean of its divisors is an integer number (24308235).

Almost surely, 2^222246624 is an apocalyptic number.

222246624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222246624 is an abundant number, since it is smaller than the sum of its proper divisors (361151016).

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

222246624 is a wasteful number, since it uses less digits than its factorization.

222246624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315082 (or 2315074 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 222246624 is about 14907.9382880397. The cubic root of 222246624 is about 605.7290339524.

Adding to 222246624 its reverse (426642222), we get a palindrome (648888846).

The spelling of 222246624 in words is "two hundred twenty-two million, two hundred forty-six thousand, six hundred twenty-four".