40957243 has 4 divisors (see below), whose sum is σ = 41008680. Its totient is φ = 40905808.

The previous prime is 40957219. The next prime is 40957247. The reversal of 40957243 is 34275904.

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 40957243 - 2⁵ = 40957211 is a prime.

It is a super-2 number, since 2×40957243² = 3354991508322098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40957199 and 40957208.

It is not an unprimeable number, because it can be changed into a prime (40957247) 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, 24505 + ... + 26122.

It is an arithmetic number, because the mean of its divisors is an integer number (10252170).

Almost surely, 2^40957243 is an apocalyptic number.

40957243 is a deficient number, since it is larger than the sum of its proper divisors (51437).

40957243 is an equidigital number, since it uses as much as digits as its factorization.

40957243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51436.

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

The square root of 40957243 is about 6399.7846057504. The cubic root of 40957243 is about 344.7018161477.

The spelling of 40957243 in words is "forty million, nine hundred fifty-seven thousand, two hundred forty-three".