220542430 has 16 divisors (see below), whose sum is σ = 400009104. Its totient is φ = 87543040.

The previous prime is 220542409. The next prime is 220542431. The reversal of 220542430 is 34245022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220542431) 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, 82867 + ... + 85486.

It is an arithmetic number, because the mean of its divisors is an integer number (25000569).

Almost surely, 2^220542430 is an apocalyptic number.

220542430 is a deficient number, since it is larger than the sum of its proper divisors (179466674).

220542430 is a wasteful number, since it uses less digits than its factorization.

220542430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168491.

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

The square root of 220542430 is about 14850.6710286101. The cubic root of 220542430 is about 604.1768099975.

Adding to 220542430 its reverse (34245022), we get a palindrome (254787452).

The spelling of 220542430 in words is "two hundred twenty million, five hundred forty-two thousand, four hundred thirty".