398170346 has 32 divisors (see below), whose sum is σ = 720370560. Its totient is φ = 161243136.

The previous prime is 398170337. The next prime is 398170373. The reversal of 398170346 is 643071893.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113450 + ... + 116906.

It is an arithmetic number, because the mean of its divisors is an integer number (22511580).

Almost surely, 2^398170346 is an apocalyptic number.

398170346 is a deficient number, since it is larger than the sum of its proper divisors (322200214).

398170346 is a wasteful number, since it uses less digits than its factorization.

398170346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 398170346 is about 19954.2062232503. The cubic root of 398170346 is about 735.6811653135.

The spelling of 398170346 in words is "three hundred ninety-eight million, one hundred seventy thousand, three hundred forty-six".