398230744 has 16 divisors (see below), whose sum is σ = 747835920. Its totient is φ = 198807840.

The previous prime is 398230739. The next prime is 398230751. The reversal of 398230744 is 447032893.

It is a junction number, because it is equal to n+sod(n) for n = 398230697 and 398230706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32892 + ... + 43339.

It is an arithmetic number, because the mean of its divisors is an integer number (46739745).

Almost surely, 2^398230744 is an apocalyptic number.

It is an amenable number.

398230744 is a deficient number, since it is larger than the sum of its proper divisors (349605176).

398230744 is a wasteful number, since it uses less digits than its factorization.

398230744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76890 (or 76886 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 398230744 is about 19955.7195811126. The cubic root of 398230744 is about 735.7183616416.

The spelling of 398230744 in words is "three hundred ninety-eight million, two hundred thirty thousand, seven hundred forty-four".