1220322634 has 16 divisors (see below), whose sum is σ = 1843700040. Its totient is φ = 605767680.

The previous prime is 1220322619. The next prime is 1220322659. The reversal of 1220322634 is 4362230221.

It can be written as a sum of positive squares in 4 ways, for example, as 549668025 + 670654609 = 23445^2 + 25897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220322599 and 1220322608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241122 + ... + 246130.

Almost surely, 2^1220322634 is an apocalyptic number.

1220322634 is a deficient number, since it is larger than the sum of its proper divisors (623377406).

1220322634 is a wasteful number, since it uses less digits than its factorization.

1220322634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1220322634 is about 34933.1165801164. The cubic root of 1220322634 is about 1068.6239142024.

Adding to 1220322634 its reverse (4362230221), we get a palindrome (5582552855).

The spelling of 1220322634 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, six hundred thirty-four".