421420124 has 12 divisors (see below), whose sum is σ = 754636344. Its totient is φ = 205809744.

The previous prime is 421420063. The next prime is 421420187. The reversal of 421420124 is 421024124.

It is a junction number, because it is equal to n+sod(n) for n = 421420096 and 421420105.

It is a congruent number.

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, 1224887 + ... + 1225230.

It is an arithmetic number, because the mean of its divisors is an integer number (62886362).

Almost surely, 2^421420124 is an apocalyptic number.

It is an amenable number.

421420124 is a deficient number, since it is larger than the sum of its proper divisors (333216220).

421420124 is a wasteful number, since it uses less digits than its factorization.

421420124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450164 (or 2450162 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 421420124 is about 20528.5197712840. The cubic root of 421420124 is about 749.7303469131.

Adding to 421420124 its reverse (421024124), we get a palindrome (842444248).

The spelling of 421420124 in words is "four hundred twenty-one million, four hundred twenty thousand, one hundred twenty-four".