42040002 has 8 divisors (see below), whose sum is σ = 84080016. Its totient is φ = 14013332.

The previous prime is 42039967. The next prime is 42040007. The reversal of 42040002 is 20004024.

It is a sphenic number, since it is the product of 3 distinct primes.

42040002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42040002.

It is not an unprimeable number, because it can be changed into a prime (42040007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3503328 + ... + 3503339.

It is an arithmetic number, because the mean of its divisors is an integer number (10510002).

Almost surely, 2^42040002 is an apocalyptic number.

42040002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42040002 is a wasteful number, since it uses less digits than its factorization.

42040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006672.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 42040002 is about 6483.8261852089. The cubic root of 42040002 is about 347.7129850416.

Adding to 42040002 its reverse (20004024), we get a palindrome (62044026).

The spelling of 42040002 in words is "forty-two million, forty thousand, two", and thus it is an eban number.