421105564 has 48 divisors (see below), whose sum is σ = 823011840. Its totient is φ = 186904640.

The previous prime is 421105561. The next prime is 421105567. The reversal of 421105564 is 465501124.

It is an interprime number because it is at equal distance from previous prime (421105561) and next prime (421105567).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421105561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836937 + ... + 837439.

It is an arithmetic number, because the mean of its divisors is an integer number (17146080).

Almost surely, 2^421105564 is an apocalyptic number.

421105564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421105564 is a deficient number, since it is larger than the sum of its proper divisors (401906276).

421105564 is a wasteful number, since it uses less digits than its factorization.

421105564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 421105564 is about 20520.8568047243. The cubic root of 421105564 is about 749.5437604428.

Adding to 421105564 its reverse (465501124), we get a palindrome (886606688).

It can be divided in two parts, 42110 and 5564, that added together give a palindrome (47674).

The spelling of 421105564 in words is "four hundred twenty-one million, one hundred five thousand, five hundred sixty-four".