398259112 has 8 divisors (see below), whose sum is σ = 746735850. Its totient is φ = 199129552.

The previous prime is 398259109. The next prime is 398259193. The reversal of 398259112 is 211952893.

It can be written as a sum of positive squares in only one way, i.e., 255552196 + 142706916 = 15986^2 + 11946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×398259112² = 317220640582057088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24891187 + ... + 24891202.

Almost surely, 2^398259112 is an apocalyptic number.

It is an amenable number.

398259112 is a deficient number, since it is larger than the sum of its proper divisors (348476738).

398259112 is a wasteful number, since it uses less digits than its factorization.

398259112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49782395 (or 49782391 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 398259112 is about 19956.4303421228. The cubic root of 398259112 is about 735.7358308796.

The spelling of 398259112 in words is "three hundred ninety-eight million, two hundred fifty-nine thousand, one hundred twelve".