42004024040 has 32 divisors (see below), whose sum is σ = 103100787360. Its totient is φ = 15274190400.

The previous prime is 42004024021. The next prime is 42004024043. The reversal of 42004024040 is 4042040024.

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

It is not an unprimeable number, because it can be changed into a prime (42004024043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47731406 + ... + 47732285.

It is an arithmetic number, because the mean of its divisors is an integer number (3221899605).

Almost surely, 2^42004024040 is an apocalyptic number.

42004024040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42004024040 is an abundant number, since it is smaller than the sum of its proper divisors (61096763320).

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

42004024040 is a wasteful number, since it uses less digits than its factorization.

42004024040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95463713 (or 95463709 counting only the distinct ones).

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

Adding to 42004024040 its reverse (4042040024), we get a palindrome (46046064064).

The spelling of 42004024040 in words is "forty-two billion, four million, twenty-four thousand, forty".