42281711 has 4 divisors (see below), whose sum is σ = 42541272. Its totient is φ = 42022152.

The previous prime is 42281653. The next prime is 42281741. The reversal of 42281711 is 11718224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42281711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42281741) 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, 129536 + ... + 129861.

It is an arithmetic number, because the mean of its divisors is an integer number (10635318).

Almost surely, 2^42281711 is an apocalyptic number.

42281711 is a deficient number, since it is larger than the sum of its proper divisors (259561).

42281711 is a wasteful number, since it uses less digits than its factorization.

42281711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259560.

The product of its digits is 896, while the sum is 26.

The square root of 42281711 is about 6502.4388501546. The cubic root of 42281711 is about 348.3781039245.

Adding to 42281711 its reverse (11718224), we get a palindrome (53999935).

The spelling of 42281711 in words is "forty-two million, two hundred eighty-one thousand, seven hundred eleven".