494228407 has 2 divisors, whose sum is σ = 494228408. Its totient is φ = 494228406.

The previous prime is 494228401. The next prime is 494228461. The reversal of 494228407 is 704822494.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494228407 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 494228407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494228401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247114203 + 247114204.

It is an arithmetic number, because the mean of its divisors is an integer number (247114204).

Almost surely, 2^494228407 is an apocalyptic number.

494228407 is a deficient number, since it is larger than the sum of its proper divisors (1).

494228407 is an equidigital number, since it uses as much as digits as its factorization.

494228407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 494228407 is about 22231.2484354793. The cubic root of 494228407 is about 790.6347550276.

The spelling of 494228407 in words is "four hundred ninety-four million, two hundred twenty-eight thousand, four hundred seven".