40008811 has 2 divisors, whose sum is σ = 40008812. Its totient is φ = 40008810.

The previous prime is 40008779. The next prime is 40008821. The reversal of 40008811 is 11880004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40008811 - 2⁵ = 40008779 is a prime.

It is not a weakly prime, because it can be changed into another prime (40008821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20004405 + 20004406.

It is an arithmetic number, because the mean of its divisors is an integer number (20004406).

Almost surely, 2^40008811 is an apocalyptic number.

40008811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40008811 is an equidigital number, since it uses as much as digits as its factorization.

40008811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 40008811 is about 6325.2518526933. The cubic root of 40008811 is about 342.0202984886.

Adding to 40008811 its reverse (11880004), we get a palindrome (51888815).

The spelling of 40008811 in words is "forty million, eight thousand, eight hundred eleven".