40475893 has 4 divisors (see below), whose sum is σ = 41046048. Its totient is φ = 39905740.

The previous prime is 40475881. The next prime is 40475921. The reversal of 40475893 is 39857404.

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 a de Polignac number, because none of the positive numbers 2^k-40475893 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 (40475803) 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, 284971 + ... + 285112.

It is an arithmetic number, because the mean of its divisors is an integer number (10261512).

Almost surely, 2^40475893 is an apocalyptic number.

It is an amenable number.

40475893 is a deficient number, since it is larger than the sum of its proper divisors (570155).

40475893 is an equidigital number, since it uses as much as digits as its factorization.

40475893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570154.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 40475893 is about 6362.0667239506. The cubic root of 40475893 is about 343.3461218935.

The spelling of 40475893 in words is "forty million, four hundred seventy-five thousand, eight hundred ninety-three".