40511479 has 2 divisors, whose sum is σ = 40511480. Its totient is φ = 40511478.

The previous prime is 40511473. The next prime is 40511501. The reversal of 40511479 is 97411504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40511479 - 2⁵ = 40511447 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40511479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40511473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20255739 + 20255740.

It is an arithmetic number, because the mean of its divisors is an integer number (20255740).

Almost surely, 2^40511479 is an apocalyptic number.

40511479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40511479 is an equidigital number, since it uses as much as digits as its factorization.

40511479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 40511479 is about 6364.8628421986. The cubic root of 40511479 is about 343.4467145772.

The spelling of 40511479 in words is "forty million, five hundred eleven thousand, four hundred seventy-nine".