40576243 has 2 divisors, whose sum is σ = 40576244. Its totient is φ = 40576242.

The previous prime is 40576223. The next prime is 40576253. The reversal of 40576243 is 34267504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40576243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40576213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20288121 + 20288122.

It is an arithmetic number, because the mean of its divisors is an integer number (20288122).

Almost surely, 2^40576243 is an apocalyptic number.

40576243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40576243 is an equidigital number, since it uses as much as digits as its factorization.

40576243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 40576243 is about 6369.9484299325. The cubic root of 40576243 is about 343.6296350820.

The spelling of 40576243 in words is "forty million, five hundred seventy-six thousand, two hundred forty-three".