398960288 has 12 divisors (see below), whose sum is σ = 785453130. Its totient is φ = 199480128.

The previous prime is 398960273. The next prime is 398960291. The reversal of 398960288 is 882069893.

It can be written as a sum of positive squares in only one way, i.e., 386201104 + 12759184 = 19652^2 + 3572^2 .

It is a super-2 number, since 2×398960288² = 318338622802085888, 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, 6233723 + ... + 6233786.

Almost surely, 2^398960288 is an apocalyptic number.

It is an amenable number.

398960288 is a deficient number, since it is larger than the sum of its proper divisors (386492842).

398960288 is a wasteful number, since it uses less digits than its factorization.

398960288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12467519 (or 12467511 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 398960288 is about 19973.9902873712. The cubic root of 398960288 is about 736.1673571848.

The spelling of 398960288 in words is "three hundred ninety-eight million, nine hundred sixty thousand, two hundred eighty-eight".