42871465 has 32 divisors (see below), whose sum is σ = 64431360. Its totient is φ = 26659584.

The previous prime is 42871463. The next prime is 42871469. The reversal of 42871465 is 56417824.

It is not a de Polignac number, because 42871465 - 2¹ = 42871463 is a prime.

It is a super-2 number, since 2×42871465² = 3675925022492450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42871463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26047 + ... + 27643.

It is an arithmetic number, because the mean of its divisors is an integer number (2013480).

Almost surely, 2^42871465 is an apocalyptic number.

It is an amenable number.

42871465 is a deficient number, since it is larger than the sum of its proper divisors (21559895).

42871465 is a wasteful number, since it uses less digits than its factorization.

42871465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its digits is 53760, while the sum is 37.

The square root of 42871465 is about 6547.6304874359. The cubic root of 42871465 is about 349.9903806880.

The spelling of 42871465 in words is "forty-two million, eight hundred seventy-one thousand, four hundred sixty-five".