774242449 has 2 divisors, whose sum is σ = 774242450. Its totient is φ = 774242448.

The previous prime is 774242411. The next prime is 774242479. The reversal of 774242449 is 944242477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519520849 + 254721600 = 22793^2 + 15960^2 .

It is a cyclic number.

It is not a de Polignac number, because 774242449 - 2⁷ = 774242321 is a prime.

It is not a weakly prime, because it can be changed into another prime (774242479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387121224 + 387121225.

It is an arithmetic number, because the mean of its divisors is an integer number (387121225).

Almost surely, 2^774242449 is an apocalyptic number.

It is an amenable number.

774242449 is a deficient number, since it is larger than the sum of its proper divisors (1).

774242449 is an equidigital number, since it uses as much as digits as its factorization.

774242449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 43.

The square root of 774242449 is about 27825.2124699884. The cubic root of 774242449 is about 918.2458893121.

The spelling of 774242449 in words is "seven hundred seventy-four million, two hundred forty-two thousand, four hundred forty-nine".