40872011 has 2 divisors, whose sum is σ = 40872012. Its totient is φ = 40872010.

The previous prime is 40871969. The next prime is 40872019. The reversal of 40872011 is 11027804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40872011 - 2⁶ = 40871947 is a prime.

It is not a weakly prime, because it can be changed into another prime (40872019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20436005 + 20436006.

It is an arithmetic number, because the mean of its divisors is an integer number (20436006).

Almost surely, 2^40872011 is an apocalyptic number.

40872011 is a deficient number, since it is larger than the sum of its proper divisors (1).

40872011 is an equidigital number, since it uses as much as digits as its factorization.

40872011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 40872011 is about 6393.1221637006. The cubic root of 40872011 is about 344.4625419982.

Adding to 40872011 its reverse (11027804), we get a palindrome (51899815).

The spelling of 40872011 in words is "forty million, eight hundred seventy-two thousand, eleven".