398259364 has 6 divisors (see below), whose sum is σ = 696953894. Its totient is φ = 199129680.

The previous prime is 398259353. The next prime is 398259383. The reversal of 398259364 is 463952893.

It can be written as a sum of positive squares in only one way, i.e., 382593600 + 15665764 = 19560^2 + 3958^2 .

It is a super-2 number, since 2×398259364² = 317221042027368992, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49782417 + ... + 49782424.

Almost surely, 2^398259364 is an apocalyptic number.

It is an amenable number.

398259364 is a deficient number, since it is larger than the sum of its proper divisors (298694530).

398259364 is a wasteful number, since it uses less digits than its factorization.

398259364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99564845 (or 99564843 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 49.

The square root of 398259364 is about 19956.4366558762. The cubic root of 398259364 is about 735.7359860595.

The spelling of 398259364 in words is "three hundred ninety-eight million, two hundred fifty-nine thousand, three hundred sixty-four".