42401015 has 8 divisors (see below), whose sum is σ = 51004608. Its totient is φ = 33838560.

The previous prime is 42400991. The next prime is 42401033. The reversal of 42401015 is 51010424.

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

It is not a de Polignac number, because 42401015 - 2²⁰ = 41352439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42400984 and 42401002.

It is a congruent number.

It is an unprimeable number.

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, 7967 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (6375576).

Almost surely, 2^42401015 is an apocalyptic number.

42401015 is a deficient number, since it is larger than the sum of its proper divisors (8603593).

42401015 is a wasteful number, since it uses less digits than its factorization.

42401015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20569.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42401015 is about 6511.6061766664. The cubic root of 42401015 is about 348.7054627247.

Adding to 42401015 its reverse (51010424), we get a palindrome (93411439).

The spelling of 42401015 in words is "forty-two million, four hundred one thousand, fifteen".