1220760672 has 24 divisors (see below), whose sum is σ = 3204497016. Its totient is φ = 406920192.

The previous prime is 1220760661. The next prime is 1220760679. The reversal of 1220760672 is 2760670221.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220760679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6358033 + ... + 6358224.

It is an arithmetic number, because the mean of its divisors is an integer number (133520709).

Almost surely, 2^1220760672 is an apocalyptic number.

1220760672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220760672 is an abundant number, since it is smaller than the sum of its proper divisors (1983736344).

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

1220760672 is a wasteful number, since it uses less digits than its factorization.

1220760672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12716270 (or 12716262 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1220760672 is about 34939.3856843534. The cubic root of 1220760672 is about 1068.7517606893.

The spelling of 1220760672 in words is "one billion, two hundred twenty million, seven hundred sixty thousand, six hundred seventy-two".