42002000422040 has 96 divisors (see below), whose sum is σ = 99984085020000. Its totient is φ = 15877629531648.

The previous prime is 42002000422037. The next prime is 42002000422079. The reversal of 42002000422040 is 4022400020024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2350061 + ... + 9461859.

It is an arithmetic number, because the mean of its divisors is an integer number (1041500885625).

Almost surely, 2^{42002000422040} is an apocalyptic number.

42002000422040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42002000422040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49992042510000).

42002000422040 is an abundant number, since it is smaller than the sum of its proper divisors (57982084597960).

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

42002000422040 is a wasteful number, since it uses less digits than its factorization.

42002000422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112257 (or 7112234 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 42002000422040 its reverse (4022400020024), we get a palindrome (46024400442064).

The spelling of 42002000422040 in words is "forty-two trillion, two billion, four hundred twenty-two thousand, forty".