42421333040 has 40 divisors (see below), whose sum is σ = 98659332720. Its totient is φ = 16963417856.

The previous prime is 42421332953. The next prime is 42421333043. The reversal of 42421333040 is 4033312424.

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

It is not an unprimeable number, because it can be changed into a prime (42421333043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192887 + ... + 349353.

It is an arithmetic number, because the mean of its divisors is an integer number (2466483318).

Almost surely, 2^42421333040 is an apocalyptic number.

42421333040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42421333040 is an abundant number, since it is smaller than the sum of its proper divisors (56237999680).

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

42421333040 is a wasteful number, since it uses less digits than its factorization.

42421333040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159869 (or 159863 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 42421333040 its reverse (4033312424), we get a palindrome (46454645464).

The spelling of 42421333040 in words is "forty-two billion, four hundred twenty-one million, three hundred thirty-three thousand, forty".