42081526 has 8 divisors (see below), whose sum is σ = 63149904. Its totient is φ = 21031560.

The previous prime is 42081517. The next prime is 42081541. The reversal of 42081526 is 62518024.

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

It is a junction number, because it is equal to n+sod(n) for n = 42081494 and 42081503.

It is a congruent number.

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, 5976 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (7893738).

Almost surely, 2^42081526 is an apocalyptic number.

42081526 is a deficient number, since it is larger than the sum of its proper divisors (21068378).

42081526 is a wasteful number, since it uses less digits than its factorization.

42081526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 42081526 is about 6487.0275165132. The cubic root of 42081526 is about 347.8274290804.

The spelling of 42081526 in words is "forty-two million, eighty-one thousand, five hundred twenty-six".