42002015 has 8 divisors (see below), whose sum is σ = 54984528. Its totient is φ = 30546880.

The previous prime is 42001997. The next prime is 42002017. The reversal of 42002015 is 51020024.

42002015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-42002015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381782 + ... + 381891.

It is an arithmetic number, because the mean of its divisors is an integer number (6873066).

Almost surely, 2^42002015 is an apocalyptic number.

42002015 is a deficient number, since it is larger than the sum of its proper divisors (12982513).

42002015 is a wasteful number, since it uses less digits than its factorization.

42002015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763689.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 42002015 is about 6480.8961571684. The cubic root of 42002015 is about 347.6082232836.

Adding to 42002015 its reverse (51020024), we get a palindrome (93022039).

Subtracting 42002015 from its reverse (51020024), we obtain a square (9018009 = 3003²).

The spelling of 42002015 in words is "forty-two million, two thousand, fifteen".