1220480629 has 2 divisors, whose sum is σ = 1220480630. Its totient is φ = 1220480628.

The previous prime is 1220480623. The next prime is 1220480687. The reversal of 1220480629 is 9260840221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205964529 + 14516100 = 34727^2 + 3810^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220480629 - 2³ = 1220480621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220480594 and 1220480603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220480621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610240314 + 610240315.

It is an arithmetic number, because the mean of its divisors is an integer number (610240315).

Almost surely, 2^1220480629 is an apocalyptic number.

It is an amenable number.

1220480629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220480629 is an equidigital number, since it uses as much as digits as its factorization.

1220480629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1220480629 is about 34935.3778997737. The cubic root of 1220480629 is about 1068.6700304082.

The spelling of 1220480629 in words is "one billion, two hundred twenty million, four hundred eighty thousand, six hundred twenty-nine".