398629622 has 8 divisors (see below), whose sum is σ = 598077000. Its totient is φ = 199270624.

The previous prime is 398629619. The next prime is 398629639. The reversal of 398629622 is 226926893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9347 + ... + 29742.

It is an arithmetic number, because the mean of its divisors is an integer number (74759625).

Almost surely, 2^398629622 is an apocalyptic number.

398629622 is a deficient number, since it is larger than the sum of its proper divisors (199447378).

398629622 is a wasteful number, since it uses less digits than its factorization.

398629622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44190.

The product of its digits is 559872, while the sum is 47.

The square root of 398629622 is about 19965.7111568809. The cubic root of 398629622 is about 735.9639177235.

The spelling of 398629622 in words is "three hundred ninety-eight million, six hundred twenty-nine thousand, six hundred twenty-two".