220404211434 has 128 divisors (see below), whose sum is σ = 556321893120. Its totient is φ = 64091520000.

The previous prime is 220404211397. The next prime is 220404211453. The reversal of 220404211434 is 434112404022.

220404211434 is a `hidden beast` number, since 2 + 2 + 0 + 404 + 211 + 43 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 220404211398 and 220404211407.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1411414 + ... + 1559774.

It is an arithmetic number, because the mean of its divisors is an integer number (4346264790).

Almost surely, 2^220404211434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220404211434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278160946560).

220404211434 is an abundant number, since it is smaller than the sum of its proper divisors (335917681686).

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

220404211434 is a wasteful number, since it uses less digits than its factorization.

220404211434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148485 (or 148479 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 220404211434 its reverse (434112404022), we get a palindrome (654516615456).

The spelling of 220404211434 in words is "two hundred twenty billion, four hundred four million, two hundred eleven thousand, four hundred thirty-four".