40127957 has 4 divisors (see below), whose sum is σ = 40210176. Its totient is φ = 40045740.

The previous prime is 40127953. The next prime is 40127963. The reversal of 40127957 is 75972104.

40127957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40127957 - 2² = 40127953 is a prime.

It is a super-2 number, since 2×40127957² = 3220505865987698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40127953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40373 + ... + 41354.

It is an arithmetic number, because the mean of its divisors is an integer number (10052544).

Almost surely, 2^40127957 is an apocalyptic number.

It is an amenable number.

40127957 is a deficient number, since it is larger than the sum of its proper divisors (82219).

40127957 is an equidigital number, since it uses as much as digits as its factorization.

40127957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82218.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 40127957 is about 6334.6631323220. The cubic root of 40127957 is about 342.3594734921.

The spelling of 40127957 in words is "forty million, one hundred twenty-seven thousand, nine hundred fifty-seven".