612443222 has 8 divisors (see below), whose sum is σ = 929733336. Its totient is φ = 302532112.

The previous prime is 612443213. The next prime is 612443261. The reversal of 612443222 is 222344216.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 612443191 and 612443200.

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, 1844543 + ... + 1844874.

It is an arithmetic number, because the mean of its divisors is an integer number (116216667).

Almost surely, 2^612443222 is an apocalyptic number.

612443222 is a deficient number, since it is larger than the sum of its proper divisors (317290114).

612443222 is a wasteful number, since it uses less digits than its factorization.

612443222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689502.

The product of its digits is 4608, while the sum is 26.

The square root of 612443222 is about 24747.5902261210. The cubic root of 612443222 is about 849.2233838432.

Adding to 612443222 its reverse (222344216), we get a palindrome (834787438).

The spelling of 612443222 in words is "six hundred twelve million, four hundred forty-three thousand, two hundred twenty-two".