220420134 has 36 divisors (see below), whose sum is σ = 524945148. Its totient is φ = 66793320.

The previous prime is 220420129. The next prime is 220420157. The reversal of 220420134 is 431024022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48424 + ... + 52779.

Almost surely, 2^220420134 is an apocalyptic number.

220420134 is an abundant number, since it is smaller than the sum of its proper divisors (304525014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220420134 is a wasteful number, since it uses less digits than its factorization.

220420134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101233 (or 101219 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220420134 is about 14846.5529332569. The cubic root of 220420134 is about 604.0651125659.

Adding to 220420134 its reverse (431024022), we get a palindrome (651444156).

The spelling of 220420134 in words is "two hundred twenty million, four hundred twenty thousand, one hundred thirty-four".