388698226 has 16 divisors (see below), whose sum is σ = 668517696. Its totient is φ = 166040496.

The previous prime is 388698173. The next prime is 388698239. The reversal of 388698226 is 622896883.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40921 + ... + 49516.

It is an arithmetic number, because the mean of its divisors is an integer number (41782356).

Almost surely, 2^388698226 is an apocalyptic number.

388698226 is a deficient number, since it is larger than the sum of its proper divisors (279819470).

388698226 is a wasteful number, since it uses less digits than its factorization.

388698226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90753.

The product of its digits is 1990656, while the sum is 52.

The square root of 388698226 is about 19715.4311644458. The cubic root of 388698226 is about 729.8005497522.

The spelling of 388698226 in words is "three hundred eighty-eight million, six hundred ninety-eight thousand, two hundred twenty-six".