40671853 has 4 divisors (see below), whose sum is σ = 41244768. Its totient is φ = 40098940.

The previous prime is 40671823. The next prime is 40671857. The reversal of 40671853 is 35817604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40671853 - 2⁵ = 40671821 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 (40671857) 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, 286351 + ... + 286492.

It is an arithmetic number, because the mean of its divisors is an integer number (10311192).

Almost surely, 2^40671853 is an apocalyptic number.

It is an amenable number.

40671853 is a deficient number, since it is larger than the sum of its proper divisors (572915).

40671853 is an equidigital number, since it uses as much as digits as its factorization.

40671853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572914.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40671853 is about 6377.4487845846. The cubic root of 40671853 is about 343.8993221016.

The spelling of 40671853 in words is "forty million, six hundred seventy-one thousand, eight hundred fifty-three".