42471526 has 4 divisors (see below), whose sum is σ = 63707292. Its totient is φ = 21235762.

The previous prime is 42471521. The next prime is 42471529. The reversal of 42471526 is 62517424.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42471521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10617880 + ... + 10617883.

It is an arithmetic number, because the mean of its divisors is an integer number (15926823).

Almost surely, 2^42471526 is an apocalyptic number.

42471526 is a deficient number, since it is larger than the sum of its proper divisors (21235766).

42471526 is a wasteful number, since it uses less digits than its factorization.

42471526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21235765.

The product of its digits is 13440, while the sum is 31.

The square root of 42471526 is about 6517.0181831878. The cubic root of 42471526 is about 348.8986495632.

The spelling of 42471526 in words is "forty-two million, four hundred seventy-one thousand, five hundred twenty-six".