42743015 has 16 divisors (see below), whose sum is σ = 62068032. Its totient is φ = 27585024.

The previous prime is 42743009. The next prime is 42743047. The reversal of 42743015 is 51034724.

42743015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42743015 - 2¹² = 42738919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35324 + ... + 36513.

It is an arithmetic number, because the mean of its divisors is an integer number (3879252).

Almost surely, 2^42743015 is an apocalyptic number.

42743015 is a deficient number, since it is larger than the sum of its proper divisors (19325017).

42743015 is a wasteful number, since it uses less digits than its factorization.

42743015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71866.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 42743015 is about 6537.8142371897. The cubic root of 42743015 is about 349.6404879868.

Adding to 42743015 its reverse (51034724), we get a palindrome (93777739).

The spelling of 42743015 in words is "forty-two million, seven hundred forty-three thousand, fifteen".