404776249 has 2 divisors, whose sum is σ = 404776250. Its totient is φ = 404776248.

The previous prime is 404776237. The next prime is 404776261. The reversal of 404776249 is 942677404.

It is a balanced prime because it is at equal distance from previous prime (404776237) and next prime (404776261).

It can be written as a sum of positive squares in only one way, i.e., 325441600 + 79334649 = 18040^2 + 8907^2 .

It is a cyclic number.

It is not a de Polignac number, because 404776249 - 2⁷ = 404776121 is a prime.

It is not a weakly prime, because it can be changed into another prime (404776219) 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, 202388124 + 202388125.

It is an arithmetic number, because the mean of its divisors is an integer number (202388125).

Almost surely, 2^404776249 is an apocalyptic number.

It is an amenable number.

404776249 is a deficient number, since it is larger than the sum of its proper divisors (1).

404776249 is an equidigital number, since it uses as much as digits as its factorization.

404776249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 404776249 is about 20119.0518911802. The cubic root of 404776249 is about 739.7273459855.

The spelling of 404776249 in words is "four hundred four million, seven hundred seventy-six thousand, two hundred forty-nine".