421424142444 has 24 divisors (see below), whose sum is σ = 1092581110320. Its totient is φ = 140474714112.

The previous prime is 421424142421. The next prime is 421424142527. The reversal of 421424142444 is 444241424124.

421424142444 is a `hidden beast` number, since 4 + 214 + 2 + 414 + 24 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 421424142399 and 421424142408.

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, 1951037589 + ... + 1951037804.

It is an arithmetic number, because the mean of its divisors is an integer number (45524212930).

Almost surely, 2^421424142444 is an apocalyptic number.

It is an amenable number.

421424142444 is an abundant number, since it is smaller than the sum of its proper divisors (671156967876).

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

421424142444 is a wasteful number, since it uses less digits than its factorization.

421424142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902075406 (or 3902075398 counting only the distinct ones).

The product of its digits is 131072, while the sum is 36.

Adding to 421424142444 its reverse (444241424124), we get a palindrome (865665566568).

The spelling of 421424142444 in words is "four hundred twenty-one billion, four hundred twenty-four million, one hundred forty-two thousand, four hundred forty-four".