42140023040 has 144 divisors (see below), whose sum is σ = 103817016576. Its totient is φ = 16378675200.

The previous prime is 42140023007. The next prime is 42140023129. The reversal of 42140023040 is 4032004124.

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

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 15 ways as a sum of consecutive naturals, for example, 14220599 + ... + 14223561.

It is an arithmetic number, because the mean of its divisors is an integer number (720951504).

Almost surely, 2^42140023040 is an apocalyptic number.

42140023040 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 42140023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51908508288).

42140023040 is an abundant number, since it is smaller than the sum of its proper divisors (61676993536).

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

42140023040 is a wasteful number, since it uses less digits than its factorization.

42140023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 42140023040 its reverse (4032004124), we get a palindrome (46172027164).

The spelling of 42140023040 in words is "forty-two billion, one hundred forty million, twenty-three thousand, forty".