421227404 has 24 divisors (see below), whose sum is σ = 795787440. Its totient is φ = 193938624.

The previous prime is 421227361. The next prime is 421227431. The reversal of 421227404 is 404722124.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12122 + ... + 31454.

It is an arithmetic number, because the mean of its divisors is an integer number (33157810).

Almost surely, 2^421227404 is an apocalyptic number.

It is an amenable number.

421227404 is a deficient number, since it is larger than the sum of its proper divisors (374560036).

421227404 is a wasteful number, since it uses less digits than its factorization.

421227404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19769 (or 19767 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 421227404 is about 20523.8252769799. The cubic root of 421227404 is about 749.6160428769.

Adding to 421227404 its reverse (404722124), we get a palindrome (825949528).

The spelling of 421227404 in words is "four hundred twenty-one million, two hundred twenty-seven thousand, four hundred four".