42242020440 has 64 divisors (see below), whose sum is σ = 126873216000. Its totient is φ = 11251458432.

The previous prime is 42242020433. The next prime is 42242020441. The reversal of 42242020440 is 4402024224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42242020440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242020441) 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, 100390 + ... + 307509.

It is an arithmetic number, because the mean of its divisors is an integer number (1982394000).

Almost surely, 2^42242020440 is an apocalyptic number.

42242020440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42242020440 is an abundant number, since it is smaller than the sum of its proper divisors (84631195560).

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

42242020440 is a wasteful number, since it uses less digits than its factorization.

42242020440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408776 (or 408772 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 42242020440 its reverse (4402024224), we get a palindrome (46644044664).

The spelling of 42242020440 in words is "forty-two billion, two hundred forty-two million, twenty thousand, four hundred forty".