388698398 has 16 divisors (see below), whose sum is σ = 656570880. Its totient is φ = 170981400.

The previous prime is 388698383. The next prime is 388698419. The reversal of 388698398 is 893896883.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 388698398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284288 + ... + 285651.

It is an arithmetic number, because the mean of its divisors is an integer number (41035680).

Almost surely, 2^388698398 is an apocalyptic number.

388698398 is a deficient number, since it is larger than the sum of its proper divisors (267872482).

388698398 is a wasteful number, since it uses less digits than its factorization.

388698398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569983.

The product of its digits is 17915904, while the sum is 62.

The square root of 388698398 is about 19715.4355265107. The cubic root of 388698398 is about 729.8006573984.

The spelling of 388698398 in words is "three hundred eighty-eight million, six hundred ninety-eight thousand, three hundred ninety-eight".