220440434 has 16 divisors (see below), whose sum is σ = 339984000. Its totient is φ = 107144304.

The previous prime is 220440431. The next prime is 220440449. The reversal of 220440434 is 434044022.

It is not an unprimeable number, because it can be changed into a prime (220440431) 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, 6137 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (21249000).

Almost surely, 2^220440434 is an apocalyptic number.

220440434 is a deficient number, since it is larger than the sum of its proper divisors (119543566).

220440434 is a wasteful number, since it uses less digits than its factorization.

220440434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15937.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 220440434 is about 14847.2365778956. The cubic root of 220440434 is about 604.0836561613.

Adding to 220440434 its reverse (434044022), we get a palindrome (654484456).

The spelling of 220440434 in words is "two hundred twenty million, four hundred forty thousand, four hundred thirty-four".