42221303440 has 40 divisors (see below), whose sum is σ = 98197107840. Its totient is φ = 16882916736.

The previous prime is 42221303437. The next prime is 42221303471. The reversal of 42221303440 is 4430312224.

It is a happy number.

42221303440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 159321 + ... + 331399.

It is an arithmetic number, because the mean of its divisors is an integer number (2454927696).

Almost surely, 2^42221303440 is an apocalyptic number.

42221303440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42221303440 is an abundant number, since it is smaller than the sum of its proper divisors (55975804400).

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

42221303440 is a wasteful number, since it uses less digits than its factorization.

42221303440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175159 (or 175153 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 42221303440 its reverse (4430312224), we get a palindrome (46651615664).

The spelling of 42221303440 in words is "forty-two billion, two hundred twenty-one million, three hundred three thousand, four hundred forty".