1220496763 has 8 divisors (see below), whose sum is σ = 1254893760. Its totient is φ = 1186174080.

The previous prime is 1220496757. The next prime is 1220496811. The reversal of 1220496763 is 3676940221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1220496763 - 2²⁹ = 683625851 is a prime.

It is a super-2 number, since 2×1220496763² = 2979224696986956338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220496713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15603 + ... + 51811.

It is an arithmetic number, because the mean of its divisors is an integer number (156861720).

Almost surely, 2^1220496763 is an apocalyptic number.

1220496763 is a deficient number, since it is larger than the sum of its proper divisors (34396997).

1220496763 is an equidigital number, since it uses as much as digits as its factorization.

1220496763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37157.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1220496763 is about 34935.6088110684. The cubic root of 1220496763 is about 1068.6747394400.

The spelling of 1220496763 in words is "one billion, two hundred twenty million, four hundred ninety-six thousand, seven hundred sixty-three".