42294871 has 4 divisors (see below), whose sum is σ = 42455952. Its totient is φ = 42133792.

The previous prime is 42294869. The next prime is 42294911. The reversal of 42294871 is 17849224.

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

It is a cyclic number.

It is not a de Polignac number, because 42294871 - 2¹ = 42294869 is a prime.

It is a super-2 number, since 2×42294871² = 3577712225813282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42294871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42294841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80146 + ... + 80671.

It is an arithmetic number, because the mean of its divisors is an integer number (10613988).

Almost surely, 2^42294871 is an apocalyptic number.

42294871 is a deficient number, since it is larger than the sum of its proper divisors (161081).

42294871 is a wasteful number, since it uses less digits than its factorization.

42294871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161080.

The product of its digits is 32256, while the sum is 37.

The square root of 42294871 is about 6503.4506994364. The cubic root of 42294871 is about 348.4142439022.

The spelling of 42294871 in words is "forty-two million, two hundred ninety-four thousand, eight hundred seventy-one".