424421244 has 144 divisors (see below), whose sum is σ = 1198701504. Its totient is φ = 125798400.

The previous prime is 424421243. The next prime is 424421251. The reversal of 424421244 is 442124424.

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 (424421243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1760964 + ... + 1761204.

It is an arithmetic number, because the mean of its divisors is an integer number (8324316).

Almost surely, 2^424421244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424421244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599350752).

424421244 is an abundant number, since it is smaller than the sum of its proper divisors (774280260).

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

424421244 is a wasteful number, since it uses less digits than its factorization.

424421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 383 counting only the distinct ones).

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

The square root of 424421244 is about 20601.4864512248. The cubic root of 424421244 is about 751.5058598247.

Adding to 424421244 its reverse (442124424), we get a palindrome (866545668).

The spelling of 424421244 in words is "four hundred twenty-four million, four hundred twenty-one thousand, two hundred forty-four".