1630440222 has 8 divisors (see below), whose sum is σ = 3260880456. Its totient is φ = 543480072.

The previous prime is 1630440221. The next prime is 1630440239. The reversal of 1630440222 is 2220440361.

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

1630440222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1630440192 and 1630440201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630440221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135870013 + ... + 135870024.

It is an arithmetic number, because the mean of its divisors is an integer number (407610057).

Almost surely, 2^1630440222 is an apocalyptic number.

1630440222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1630440222 is a wasteful number, since it uses less digits than its factorization.

1630440222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271740042.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1630440222 is about 40378.7100091125. The cubic root of 1630440222 is about 1176.9778601976.

Adding to 1630440222 its reverse (2220440361), we get a palindrome (3850880583).

The spelling of 1630440222 in words is "one billion, six hundred thirty million, four hundred forty thousand, two hundred twenty-two".