421113144 has 32 divisors (see below), whose sum is σ = 1053717120. Its totient is φ = 140246496.

The previous prime is 421113139. The next prime is 421113191. The reversal of 421113144 is 441311124.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 421113144.

It is a congruent number.

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, 22179 + ... + 36525.

It is an arithmetic number, because the mean of its divisors is an integer number (32928660).

Almost surely, 2^421113144 is an apocalyptic number.

It is an amenable number.

421113144 is an abundant number, since it is smaller than the sum of its proper divisors (632603976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421113144 is a wasteful number, since it uses less digits than its factorization.

421113144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15579 (or 15575 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 421113144 is about 20521.0414940373. The cubic root of 421113144 is about 749.5482577376.

Adding to 421113144 its reverse (441311124), we get a palindrome (862424268).

The spelling of 421113144 in words is "four hundred twenty-one million, one hundred thirteen thousand, one hundred forty-four".