1220453441 has 8 divisors (see below), whose sum is σ = 1241082144. Its totient is φ = 1199895840.

The previous prime is 1220453417. The next prime is 1220453453. The reversal of 1220453441 is 1443540221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220453441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220453441.

It is not an unprimeable number, because it can be changed into a prime (1220453401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17426 + ... + 52388.

It is an arithmetic number, because the mean of its divisors is an integer number (155135268).

Almost surely, 2^1220453441 is an apocalyptic number.

It is an amenable number.

1220453441 is a deficient number, since it is larger than the sum of its proper divisors (20628703).

1220453441 is an equidigital number, since it uses as much as digits as its factorization.

1220453441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35551.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1220453441 is about 34934.9887791595. The cubic root of 1220453441 is about 1068.6620949507.

Adding to 1220453441 its reverse (1443540221), we get a palindrome (2663993662).

The spelling of 1220453441 in words is "one billion, two hundred twenty million, four hundred fifty-three thousand, four hundred forty-one".