424001443420 has 48 divisors (see below), whose sum is σ = 912550772448. Its totient is φ = 165385866240.

The previous prime is 424001443403. The next prime is 424001443457. The reversal of 424001443420 is 24344100424.

It is a super-2 number, since 2×424001443420² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1631359 + ... + 1873321.

It is an arithmetic number, because the mean of its divisors is an integer number (19011474426).

Almost surely, 2^424001443420 is an apocalyptic number.

It is an amenable number.

424001443420 is an abundant number, since it is smaller than the sum of its proper divisors (488549329028).

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

424001443420 is a wasteful number, since it uses less digits than its factorization.

424001443420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244150 (or 244148 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 424001443420 its reverse (24344100424), we get a palindrome (448345543844).

The spelling of 424001443420 in words is "four hundred twenty-four billion, one million, four hundred forty-three thousand, four hundred twenty".