40271405 has 4 divisors (see below), whose sum is σ = 48325692. Its totient is φ = 32217120.

The previous prime is 40271381. The next prime is 40271411. The reversal of 40271405 is 50417204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5248681 + 35022724 = 2291^2 + 5918^2 .

It is not a de Polignac number, because 40271405 - 2¹⁰ = 40270381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027136 + ... + 4027145.

It is an arithmetic number, because the mean of its divisors is an integer number (12081423).

Almost surely, 2^40271405 is an apocalyptic number.

It is an amenable number.

40271405 is a deficient number, since it is larger than the sum of its proper divisors (8054287).

40271405 is an equidigital number, since it uses as much as digits as its factorization.

40271405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054286.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40271405 is about 6345.9754963284. The cubic root of 40271405 is about 342.7669398534.

Adding to 40271405 its reverse (50417204), we get a palindrome (90688609).

The spelling of 40271405 in words is "forty million, two hundred seventy-one thousand, four hundred five".