388042079 has 2 divisors, whose sum is σ = 388042080. Its totient is φ = 388042078.

The previous prime is 388042049. The next prime is 388042093. The reversal of 388042079 is 970240883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 388042079 - 2¹² = 388037983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388042049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194021039 + 194021040.

It is an arithmetic number, because the mean of its divisors is an integer number (194021040).

Almost surely, 2^388042079 is an apocalyptic number.

388042079 is a deficient number, since it is larger than the sum of its proper divisors (1).

388042079 is an equidigital number, since it uses as much as digits as its factorization.

388042079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 388042079 is about 19698.7836934162. The cubic root of 388042079 is about 729.3896687578.

The spelling of 388042079 in words is "three hundred eighty-eight million, forty-two thousand, seventy-nine".