424444131 has 20 divisors (see below), whose sum is σ = 651187152. Its totient is φ = 275313168.

The previous prime is 424444127. The next prime is 424444247. The reversal of 424444131 is 131444424.

424444131 is a `hidden beast` number, since 4 + 244 + 4 + 413 + 1 = 666.

It is not a de Polignac number, because 424444131 - 2² = 424444127 is a prime.

It is a super-2 number, since 2×424444131² = 360305640680690322, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 424444095 and 424444104.

It is not an unprimeable number, because it can be changed into a prime (424444121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67815 + ... + 73808.

Almost surely, 2^424444131 is an apocalyptic number.

424444131 is a deficient number, since it is larger than the sum of its proper divisors (226743021).

424444131 is a wasteful number, since it uses less digits than its factorization.

424444131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141672 (or 141663 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 424444131 is about 20602.0419133638. The cubic root of 424444131 is about 751.5193679496.

Adding to 424444131 its reverse (131444424), we get a palindrome (555888555).

The spelling of 424444131 in words is "four hundred twenty-four million, four hundred forty-four thousand, one hundred thirty-one".