42015842 has 8 divisors (see below), whose sum is σ = 68753232. Its totient is φ = 19098100.

The previous prime is 42015793. The next prime is 42015851. The reversal of 42015842 is 24851024.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954884 + ... + 954927.

It is an arithmetic number, because the mean of its divisors is an integer number (8594154).

Almost surely, 2^42015842 is an apocalyptic number.

42015842 is a deficient number, since it is larger than the sum of its proper divisors (26737390).

42015842 is a wasteful number, since it uses less digits than its factorization.

42015842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909824.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 42015842 is about 6481.9628200106. The cubic root of 42015842 is about 347.6463631330.

Adding to 42015842 its reverse (24851024), we get a palindrome (66866866).

The spelling of 42015842 in words is "forty-two million, fifteen thousand, eight hundred forty-two".