424421424 has 80 divisors (see below), whose sum is σ = 1392291840. Its totient is φ = 121262400.

The previous prime is 424421423. The next prime is 424421443. The reversal of 424421424 is 424124424.

424421424 is a `hidden beast` number, since 424 + 4 + 214 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is not an unprimeable number, because it can be changed into a prime (424421423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67152 + ... + 73199.

It is an arithmetic number, because the mean of its divisors is an integer number (17403648).

Almost surely, 2^424421424 is an apocalyptic number.

It is an amenable number.

424421424 is an abundant number, since it is smaller than the sum of its proper divisors (967870416).

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

424421424 is a wasteful number, since it uses less digits than its factorization.

424421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140375 (or 140363 counting only the distinct ones).

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

The square root of 424421424 is about 20601.4908198412. The cubic root of 424421424 is about 751.5059660643.

Adding to 424421424 its reverse (424124424), we get a palindrome (848545848).

The spelling of 424421424 in words is "four hundred twenty-four million, four hundred twenty-one thousand, four hundred twenty-four".