42000222240 has 72 divisors (see below), whose sum is σ = 143325763308. Its totient is φ = 11200058880.

The previous prime is 42000222211. The next prime is 42000222307. The reversal of 42000222240 is 4222200024.

42000222240 is a `hidden beast` number, since 4 + 200 + 0 + 222 + 240 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38631116304 + 3369105936 = 196548^2 + 58044^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14581971 + ... + 14584850.

Almost surely, 2^42000222240 is an apocalyptic number.

42000222240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42000222240 is an abundant number, since it is smaller than the sum of its proper divisors (101325541068).

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

42000222240 is a wasteful number, since it uses less digits than its factorization.

42000222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29166842 (or 29166831 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 42000222240 its reverse (4222200024), we get a palindrome (46222422264).

The spelling of 42000222240 in words is "forty-two billion, two hundred twenty-two thousand, two hundred forty".