42424404444 has 18 divisors (see below), whose sum is σ = 107239466880. Its totient is φ = 14141468136.

The previous prime is 42424404439. The next prime is 42424404457. The reversal of 42424404444 is 44440442424.

42424404444 is a `hidden beast` number, since 4 + 242 + 4 + 404 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1178455679 = 42424404444 / (4 + 2 + 4 + 2 + 4 + 4 + 0 + 4 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 42424404399 and 42424404408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 589227804 + ... + 589227875.

It is an arithmetic number, because the mean of its divisors is an integer number (5957748160).

Almost surely, 2^42424404444 is an apocalyptic number.

It is an amenable number.

42424404444 is an abundant number, since it is smaller than the sum of its proper divisors (64815062436).

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

42424404444 is a wasteful number, since it uses less digits than its factorization.

42424404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178455689 (or 1178455684 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 42424404444 its reverse (44440442424), we get a palindrome (86864846868).

The spelling of 42424404444 in words is "forty-two billion, four hundred twenty-four million, four hundred four thousand, four hundred forty-four".