398749346 has 8 divisors (see below), whose sum is σ = 604290540. Its totient is φ = 197319168.

The previous prime is 398749327. The next prime is 398749349. The reversal of 398749346 is 643947893.

It can be written as a sum of positive squares in 2 ways, for example, as 385140625 + 13608721 = 19625^2 + 3689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (398749349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027511 + ... + 1027898.

Almost surely, 2^398749346 is an apocalyptic number.

398749346 is a deficient number, since it is larger than the sum of its proper divisors (205541194).

398749346 is a wasteful number, since it uses less digits than its factorization.

398749346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055508.

The product of its digits is 3919104, while the sum is 53.

The square root of 398749346 is about 19968.7091721022. The cubic root of 398749346 is about 736.0375898905.

The spelling of 398749346 in words is "three hundred ninety-eight million, seven hundred forty-nine thousand, three hundred forty-six".