40459777 has 2 divisors, whose sum is σ = 40459778. Its totient is φ = 40459776.

The previous prime is 40459753. The next prime is 40459807. The reversal of 40459777 is 77795404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 14561856 = 5089^2 + 3816^2 .

It is a cyclic number.

It is not a de Polignac number, because 40459777 - 2⁷ = 40459649 is a prime.

It is not a weakly prime, because it can be changed into another prime (40459717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20229888 + 20229889.

It is an arithmetic number, because the mean of its divisors is an integer number (20229889).

Almost surely, 2^40459777 is an apocalyptic number.

It is an amenable number.

40459777 is a deficient number, since it is larger than the sum of its proper divisors (1).

40459777 is an equidigital number, since it uses as much as digits as its factorization.

40459777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 40459777 is about 6360.8000282983. The cubic root of 40459777 is about 343.3005466120.

The spelling of 40459777 in words is "forty million, four hundred fifty-nine thousand, seven hundred seventy-seven".