40957423 has 4 divisors (see below), whose sum is σ = 44108008. Its totient is φ = 37806840.

The previous prime is 40957379. The next prime is 40957447. The reversal of 40957423 is 32475904.

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 40957423 - 2⁹ = 40956911 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 (40957493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575273 + ... + 1575298.

It is an arithmetic number, because the mean of its divisors is an integer number (11027002).

Almost surely, 2^40957423 is an apocalyptic number.

40957423 is a deficient number, since it is larger than the sum of its proper divisors (3150585).

40957423 is a wasteful number, since it uses less digits than its factorization.

40957423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150584.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 40957423 is about 6399.7986687083. The cubic root of 40957423 is about 344.7023211152.

The spelling of 40957423 in words is "forty million, nine hundred fifty-seven thousand, four hundred twenty-three".