1220966634 has 16 divisors (see below), whose sum is σ = 2501493120. Its totient is φ = 397062240.

The previous prime is 1220966627. The next prime is 1220966647. The reversal of 1220966634 is 4366690221.

It is a junction number, because it is equal to n+sod(n) for n = 1220966592 and 1220966601.

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, 2481394 + ... + 2481885.

It is an arithmetic number, because the mean of its divisors is an integer number (156343320).

Almost surely, 2^1220966634 is an apocalyptic number.

1220966634 is an abundant number, since it is smaller than the sum of its proper divisors (1280526486).

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

1220966634 is a wasteful number, since it uses less digits than its factorization.

1220966634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963325.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1220966634 is about 34942.3329787809. The cubic root of 1220966634 is about 1068.8118625249.

The spelling of 1220966634 in words is "one billion, two hundred twenty million, nine hundred sixty-six thousand, six hundred thirty-four".