421244244 has 36 divisors (see below), whose sum is σ = 1099163520. Its totient is φ = 135884880.

The previous prime is 421244203. The next prime is 421244249. The reversal of 421244244 is 442442124.

421244244 is a `hidden beast` number, since 4 + 212 + 442 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421244249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187614 + ... + 189845.

It is an arithmetic number, because the mean of its divisors is an integer number (30532320).

Almost surely, 2^421244244 is an apocalyptic number.

It is an amenable number.

421244244 is an abundant number, since it is smaller than the sum of its proper divisors (677919276).

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

421244244 is a wasteful number, since it uses less digits than its factorization.

421244244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377500 (or 377495 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 421244244 is about 20524.2355277852. The cubic root of 421244244 is about 749.6260322285.

Adding to 421244244 its reverse (442442124), we get a palindrome (863686368).

The spelling of 421244244 in words is "four hundred twenty-one million, two hundred forty-four thousand, two hundred forty-four".