220420534 has 16 divisors (see below), whose sum is σ = 338130288. Its totient is φ = 107726112.

The previous prime is 220420531. The next prime is 220420573. The reversal of 220420534 is 435024022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220420531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25609 + ... + 33115.

It is an arithmetic number, because the mean of its divisors is an integer number (21133143).

Almost surely, 2^220420534 is an apocalyptic number.

220420534 is a deficient number, since it is larger than the sum of its proper divisors (117709754).

220420534 is a wasteful number, since it uses less digits than its factorization.

220420534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7839.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 220420534 is about 14846.5664043913. The cubic root of 220420534 is about 604.0654779679.

Adding to 220420534 its reverse (435024022), we get a palindrome (655444556).

The spelling of 220420534 in words is "two hundred twenty million, four hundred twenty thousand, five hundred thirty-four".