40472011 has 2 divisors, whose sum is σ = 40472012. Its totient is φ = 40472010.

The previous prime is 40472009. The next prime is 40472017. The reversal of 40472011 is 11027404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40472011 - 2¹ = 40472009 is a prime.

Together with 40472009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40472011.

It is not a weakly prime, because it can be changed into another prime (40472017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20236005 + 20236006.

It is an arithmetic number, because the mean of its divisors is an integer number (20236006).

Almost surely, 2^40472011 is an apocalyptic number.

40472011 is a deficient number, since it is larger than the sum of its proper divisors (1).

40472011 is an equidigital number, since it uses as much as digits as its factorization.

40472011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40472011 is about 6361.7616270967. The cubic root of 40472011 is about 343.3351448884.

Adding to 40472011 its reverse (11027404), we get a palindrome (51499415).

The spelling of 40472011 in words is "forty million, four hundred seventy-two thousand, eleven".