220457047 has 12 divisors (see below), whose sum is σ = 233281944. Its totient is φ = 208289840.

The previous prime is 220457033. The next prime is 220457053. The reversal of 220457047 is 740754022.

It is a de Polignac number, because none of the positive numbers 2^k-220457047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220457077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41397 + ... + 46417.

It is an arithmetic number, because the mean of its divisors is an integer number (19440162).

Almost surely, 2^220457047 is an apocalyptic number.

220457047 is a deficient number, since it is larger than the sum of its proper divisors (12824897).

220457047 is an equidigital number, since it uses as much as digits as its factorization.

220457047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5127 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 220457047 is about 14847.7960317348. The cubic root of 220457047 is about 604.0988309177.

It can be divided in two parts, 22045 and 7047, that added together give a palindrome (29092).

The spelling of 220457047 in words is "two hundred twenty million, four hundred fifty-seven thousand, forty-seven".