398298307 has 16 divisors (see below), whose sum is σ = 439200000. Its totient is φ = 358201440.

The previous prime is 398298281. The next prime is 398298331. The reversal of 398298307 is 703892893.

It is a cyclic number.

It is not a de Polignac number, because 398298307 - 2⁷ = 398298179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398290307) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 797944 + ... + 798442.

It is an arithmetic number, because the mean of its divisors is an integer number (27450000).

Almost surely, 2^398298307 is an apocalyptic number.

398298307 is a deficient number, since it is larger than the sum of its proper divisors (40901693).

398298307 is a wasteful number, since it uses less digits than its factorization.

398298307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 398298307 is about 19957.4123322639. The cubic root of 398298307 is about 735.7599661047.

The spelling of 398298307 in words is "three hundred ninety-eight million, two hundred ninety-eight thousand, three hundred seven".