40853971 has 4 divisors (see below), whose sum is σ = 43004200. Its totient is φ = 38703744.

The previous prime is 40853959. The next prime is 40854007. The reversal of 40853971 is 17935804.

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 40853971 - 2⁷ = 40853843 is a prime.

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 40853971.

It is not an unprimeable number, because it can be changed into a prime (40853921) 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, 1075086 + ... + 1075123.

It is an arithmetic number, because the mean of its divisors is an integer number (10751050).

Almost surely, 2^40853971 is an apocalyptic number.

40853971 is a deficient number, since it is larger than the sum of its proper divisors (2150229).

40853971 is a wasteful number, since it uses less digits than its factorization.

40853971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150228.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40853971 is about 6391.7111167511. The cubic root of 40853971 is about 344.4118551623.

The spelling of 40853971 in words is "forty million, eight hundred fifty-three thousand, nine hundred seventy-one".