384109457 has 2 divisors, whose sum is σ = 384109458. Its totient is φ = 384109456.

The previous prime is 384109409. The next prime is 384109463. The reversal of 384109457 is 754901483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312723856 + 71385601 = 17684^2 + 8449^2 .

It is a cyclic number.

It is not a de Polignac number, because 384109457 - 2⁶ = 384109393 is a prime.

It is not a weakly prime, because it can be changed into another prime (384109157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192054728 + 192054729.

It is an arithmetic number, because the mean of its divisors is an integer number (192054729).

Almost surely, 2^384109457 is an apocalyptic number.

It is an amenable number.

384109457 is a deficient number, since it is larger than the sum of its proper divisors (1).

384109457 is an equidigital number, since it uses as much as digits as its factorization.

384109457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 384109457 is about 19598.7105953427. The cubic root of 384109457 is about 726.9172918806.

The spelling of 384109457 in words is "three hundred eighty-four million, one hundred nine thousand, four hundred fifty-seven".