42063815 has 8 divisors (see below), whose sum is σ = 53133360. Its totient is φ = 31879872.

The previous prime is 42063779. The next prime is 42063817. The reversal of 42063815 is 51836024.

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

It is not a de Polignac number, because 42063815 - 2⁶ = 42063751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42063817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221294 + ... + 221483.

It is an arithmetic number, because the mean of its divisors is an integer number (6641670).

Almost surely, 2^42063815 is an apocalyptic number.

42063815 is a deficient number, since it is larger than the sum of its proper divisors (11069545).

42063815 is a wasteful number, since it uses less digits than its factorization.

42063815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442801.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42063815 is about 6485.6622637939. The cubic root of 42063815 is about 347.7786251148.

Adding to 42063815 its reverse (51836024), we get a palindrome (93899839).

The spelling of 42063815 in words is "forty-two million, sixty-three thousand, eight hundred fifteen".