388695049 has 2 divisors, whose sum is σ = 388695050. Its totient is φ = 388695048.

The previous prime is 388695031. The next prime is 388695053. The reversal of 388695049 is 940596883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272745225 + 115949824 = 16515^2 + 10768^2 .

It is a cyclic number.

It is not a de Polignac number, because 388695049 - 2¹⁷ = 388563977 is a prime.

It is a super-2 number, since 2×388695049² = 302167682234224802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388694987 and 388695005.

It is not a weakly prime, because it can be changed into another prime (388692049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194347524 + 194347525.

It is an arithmetic number, because the mean of its divisors is an integer number (194347525).

Almost surely, 2^388695049 is an apocalyptic number.

It is an amenable number.

388695049 is a deficient number, since it is larger than the sum of its proper divisors (1).

388695049 is an equidigital number, since it uses as much as digits as its factorization.

388695049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 388695049 is about 19715.3505928756. The cubic root of 388695049 is about 729.7985614208.

The spelling of 388695049 in words is "three hundred eighty-eight million, six hundred ninety-five thousand, forty-nine".