388329349 has 2 divisors, whose sum is σ = 388329350. Its totient is φ = 388329348.

The previous prime is 388329341. The next prime is 388329373. The reversal of 388329349 is 943923883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335549124 + 52780225 = 18318^2 + 7265^2 .

It is a cyclic number.

It is not a de Polignac number, because 388329349 - 2³ = 388329341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388329341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194164674 + 194164675.

It is an arithmetic number, because the mean of its divisors is an integer number (194164675).

Almost surely, 2^388329349 is an apocalyptic number.

It is an amenable number.

388329349 is a deficient number, since it is larger than the sum of its proper divisors (1).

388329349 is an equidigital number, since it uses as much as digits as its factorization.

388329349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The square root of 388329349 is about 19706.0739113604. The cubic root of 388329349 is about 729.5696149516.

The spelling of 388329349 in words is "three hundred eighty-eight million, three hundred twenty-nine thousand, three hundred forty-nine".