398230743 has 8 divisors (see below), whose sum is σ = 548102656. Its totient is φ = 256923000.

The previous prime is 398230739. The next prime is 398230751. The reversal of 398230743 is 347032893.

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

It is not a de Polignac number, because 398230743 - 2² = 398230739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398230543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2140933 + ... + 2141118.

It is an arithmetic number, because the mean of its divisors is an integer number (68512832).

Almost surely, 2^398230743 is an apocalyptic number.

398230743 is a deficient number, since it is larger than the sum of its proper divisors (149871913).

398230743 is a wasteful number, since it uses less digits than its factorization.

398230743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282085.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 398230743 is about 19955.7195560571. The cubic root of 398230743 is about 735.7183610258.

The spelling of 398230743 in words is "three hundred ninety-eight million, two hundred thirty thousand, seven hundred forty-three".