421404124 has 12 divisors (see below), whose sum is σ = 738444448. Its totient is φ = 210420000.

The previous prime is 421404121. The next prime is 421404149.

421404124 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 421404095 and 421404104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421404121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67137 + ... + 73144.

Almost surely, 2^421404124 is an apocalyptic number.

It is an amenable number.

421404124 is a deficient number, since it is larger than the sum of its proper divisors (317040324).

421404124 is a wasteful number, since it uses less digits than its factorization.

421404124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141036 (or 141034 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 421404124 is about 20528.1300658389. The cubic root of 421404124 is about 749.7208584899.

It can be divided in two parts, 42140 and 4124, that added together give a palindrome (46264).

The spelling of 421404124 in words is "four hundred twenty-one million, four hundred four thousand, one hundred twenty-four".