398430246 has 16 divisors (see below), whose sum is σ = 824338800. Its totient is φ = 128230368.

The previous prime is 398430239. The next prime is 398430257. The reversal of 398430246 is 642034893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144741 + ... + 1145088.

It is an arithmetic number, because the mean of its divisors is an integer number (51521175).

Almost surely, 2^398430246 is an apocalyptic number.

398430246 is an abundant number, since it is smaller than the sum of its proper divisors (425908554).

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

398430246 is a wasteful number, since it uses less digits than its factorization.

398430246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289863.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 398430246 is about 19960.7175722718. The cubic root of 398430246 is about 735.8411989524.

The spelling of 398430246 in words is "three hundred ninety-eight million, four hundred thirty thousand, two hundred forty-six".