398606430 has 32 divisors (see below), whose sum is σ = 961204608. Its totient is φ = 105789600.

The previous prime is 398606413. The next prime is 398606437. The reversal of 398606430 is 34606893.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398606437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25156 + ... + 37815.

It is an arithmetic number, because the mean of its divisors is an integer number (30037644).

Almost surely, 2^398606430 is an apocalyptic number.

398606430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398606430 is an abundant number, since it is smaller than the sum of its proper divisors (562598178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398606430 is a wasteful number, since it uses less digits than its factorization.

398606430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63192.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 398606430 is about 19965.1303526924. The cubic root of 398606430 is about 735.9496448201.

The spelling of 398606430 in words is "three hundred ninety-eight million, six hundred six thousand, four hundred thirty".