388424699 has 24 divisors (see below), whose sum is σ = 437935104. Its totient is φ = 343980000.

The previous prime is 388424677. The next prime is 388424711. The reversal of 388424699 is 996424883.

It is not a de Polignac number, because 388424699 - 2²⁴ = 371647483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388424699.

It is not an unprimeable number, because it can be changed into a prime (388424899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790844 + ... + 791334.

It is an arithmetic number, because the mean of its divisors is an integer number (18247296).

Almost surely, 2^388424699 is an apocalyptic number.

388424699 is a deficient number, since it is larger than the sum of its proper divisors (49510405).

388424699 is a wasteful number, since it uses less digits than its factorization.

388424699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 686 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 388424699 is about 19708.4930677107. The cubic root of 388424699 is about 729.6293226629.

The spelling of 388424699 in words is "three hundred eighty-eight million, four hundred twenty-four thousand, six hundred ninety-nine".