421108204 has 12 divisors (see below), whose sum is σ = 803933928. Its totient is φ = 191412800.

The previous prime is 421108183. The next prime is 421108273. The reversal of 421108204 is 402801124.

It is a super-2 number, since 2×421108204² = 354664238952211232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785277 + ... + 4785364.

It is an arithmetic number, because the mean of its divisors is an integer number (66994494).

Almost surely, 2^421108204 is an apocalyptic number.

421108204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421108204 is a deficient number, since it is larger than the sum of its proper divisors (382825724).

421108204 is a wasteful number, since it uses less digits than its factorization.

421108204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9570656 (or 9570654 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 421108204 is about 20520.9211294230. The cubic root of 421108204 is about 749.5453267891.

Adding to 421108204 its reverse (402801124), we get a palindrome (823909328).

The spelling of 421108204 in words is "four hundred twenty-one million, one hundred eight thousand, two hundred four".