42002013040 has 80 divisors (see below), whose sum is σ = 109739101248. Its totient is φ = 14834147328.

The previous prime is 42002013037. The next prime is 42002013041. The reversal of 42002013040 is 4031020024.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002013041) by changing a digit.

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, 854049 + ... + 901888.

Almost surely, 2^42002013040 is an apocalyptic number.

42002013040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42002013040 is an abundant number, since it is smaller than the sum of its proper divisors (67737088208).

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

42002013040 is a wasteful number, since it uses less digits than its factorization.

42002013040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755986 (or 1755980 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 42002013040 its reverse (4031020024), we get a palindrome (46033033064).

The spelling of 42002013040 in words is "forty-two billion, two million, thirteen thousand, forty".