398690030 has 8 divisors (see below), whose sum is σ = 717642072. Its totient is φ = 159476008.

The previous prime is 398690021. The next prime is 398690041. The reversal of 398690030 is 30096893.

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, 19934492 + ... + 19934511.

It is an arithmetic number, because the mean of its divisors is an integer number (89705259).

Almost surely, 2^398690030 is an apocalyptic number.

398690030 is a deficient number, since it is larger than the sum of its proper divisors (318952042).

398690030 is a wasteful number, since it uses less digits than its factorization.

398690030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39869010.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 398690030 is about 19967.2238931705. The cubic root of 398690030 is about 736.0010916316.

The spelling of 398690030 in words is "three hundred ninety-eight million, six hundred ninety thousand, thirty".