398308496 has 10 divisors (see below), whose sum is σ = 771722742. Its totient is φ = 199154240.

The previous prime is 398308489. The next prime is 398308507. The reversal of 398308496 is 694803893.

It can be written as a sum of positive squares in only one way, i.e., 393625600 + 4682896 = 19840^2 + 2164^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12447125 + ... + 12447156.

Almost surely, 2^398308496 is an apocalyptic number.

It is an amenable number.

398308496 is a deficient number, since it is larger than the sum of its proper divisors (373414246).

398308496 is a wasteful number, since it uses less digits than its factorization.

398308496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24894289 (or 24894283 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 398308496 is about 19957.6675991961. The cubic root of 398308496 is about 735.7662399571.

The spelling of 398308496 in words is "three hundred ninety-eight million, three hundred eight thousand, four hundred ninety-six".