42871534 has 16 divisors (see below), whose sum is σ = 65050128. Its totient is φ = 21189952.

The previous prime is 42871529. The next prime is 42871537. The reversal of 42871534 is 43517824.

It is a self number, because there is not a number n which added to its sum of digits gives 42871534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42871537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91569 + ... + 92035.

It is an arithmetic number, because the mean of its divisors is an integer number (4065633).

Almost surely, 2^42871534 is an apocalyptic number.

42871534 is a deficient number, since it is larger than the sum of its proper divisors (22178594).

42871534 is a wasteful number, since it uses less digits than its factorization.

42871534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its digits is 26880, while the sum is 34.

The square root of 42871534 is about 6547.6357565155. The cubic root of 42871534 is about 349.9905684533.

The spelling of 42871534 in words is "forty-two million, eight hundred seventy-one thousand, five hundred thirty-four".