42424424240 has 80 divisors (see below), whose sum is σ = 107635896576. Its totient is φ = 15422457600.

The previous prime is 42424424213. The next prime is 42424424243. The reversal of 42424424240 is 4242442424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 42424424197 and 42424424206.

It is not an unprimeable number, because it can be changed into a prime (42424424243) 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, 4662095 + ... + 4671185.

Almost surely, 2^42424424240 is an apocalyptic number.

42424424240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42424424240 is an abundant number, since it is smaller than the sum of its proper divisors (65211472336).

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

42424424240 is a wasteful number, since it uses less digits than its factorization.

42424424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418 (or 14412 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 42424424240 its reverse (4242442424), we get a palindrome (46666866664).

It can be divided in two parts, 42424 and 424240, that added together give a palindrome (466664).

The spelling of 42424424240 in words is "forty-two billion, four hundred twenty-four million, four hundred twenty-four thousand, two hundred forty".