998428170 has 32 divisors (see below), whose sum is σ = 2400311232. Its totient is φ = 265793792.

The previous prime is 998428147. The next prime is 998428181. The reversal of 998428170 is 71824899.

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, 10272 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (75009726).

Almost surely, 2^998428170 is an apocalyptic number.

998428170 is an abundant number, since it is smaller than the sum of its proper divisors (1401883062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998428170 is a wasteful number, since it uses less digits than its factorization.

998428170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56726.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 998428170 is about 31597.9140134282. The cubic root of 998428170 is about 999.4757819101.

The spelling of 998428170 in words is "nine hundred ninety-eight million, four hundred twenty-eight thousand, one hundred seventy".