40857111 has 6 divisors (see below), whose sum is σ = 59015840. Its totient is φ = 27238068.

The previous prime is 40857083. The next prime is 40857121. The reversal of 40857111 is 11175804.

It is not a de Polignac number, because 40857111 - 2¹⁰ = 40856087 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 (40857121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2269831 + ... + 2269848.

Almost surely, 2^40857111 is an apocalyptic number.

40857111 is a deficient number, since it is larger than the sum of its proper divisors (18158729).

40857111 is a wasteful number, since it uses less digits than its factorization.

40857111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539685 (or 4539682 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 40857111 is about 6391.9567426571. The cubic root of 40857111 is about 344.4206786663.

The spelling of 40857111 in words is "forty million, eight hundred fifty-seven thousand, one hundred eleven".