220034731 has 8 divisors (see below), whose sum is σ = 252015104. Its totient is φ = 188191080.

The previous prime is 220034729. The next prime is 220034783. The reversal of 220034731 is 137430022.

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

It is not a de Polignac number, because 220034731 - 2¹ = 220034729 is a prime.

It is a super-2 number, since 2×220034731² = 96830565692484722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220034701) 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 in 7 ways as a sum of consecutive naturals, for example, 30705 + ... + 37186.

It is an arithmetic number, because the mean of its divisors is an integer number (31501888).

Almost surely, 2^220034731 is an apocalyptic number.

220034731 is a deficient number, since it is larger than the sum of its proper divisors (31980373).

220034731 is an equidigital number, since it uses as much as digits as its factorization.

220034731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68361.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 220034731 is about 14833.5677097588. The cubic root of 220034731 is about 603.7128393527.

Adding to 220034731 its reverse (137430022), we get a palindrome (357464753).

The spelling of 220034731 in words is "two hundred twenty million, thirty-four thousand, seven hundred thirty-one".