385004453 has 2 divisors, whose sum is σ = 385004454. Its totient is φ = 385004452.

The previous prime is 385004449. The next prime is 385004461. The reversal of 385004453 is 354400583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378769444 + 6235009 = 19462^2 + 2497^2 .

It is a cyclic number.

It is not a de Polignac number, because 385004453 - 2² = 385004449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385004483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192502226 + 192502227.

It is an arithmetic number, because the mean of its divisors is an integer number (192502227).

Almost surely, 2^385004453 is an apocalyptic number.

It is an amenable number.

385004453 is a deficient number, since it is larger than the sum of its proper divisors (1).

385004453 is an equidigital number, since it uses as much as digits as its factorization.

385004453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 385004453 is about 19621.5303429676. The cubic root of 385004453 is about 727.4814395976.

The spelling of 385004453 in words is "three hundred eighty-five million, four thousand, four hundred fifty-three".