998194902 has 16 divisors (see below), whose sum is σ = 1996773312. Its totient is φ = 332667720.

The previous prime is 998194891. The next prime is 998194903. The reversal of 998194902 is 209491899.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998194903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26577 + ... + 51987.

It is an arithmetic number, because the mean of its divisors is an integer number (124798332).

Almost surely, 2^998194902 is an apocalyptic number.

998194902 is an abundant number, since it is smaller than the sum of its proper divisors (998578410).

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

998194902 is a wasteful number, since it uses less digits than its factorization.

998194902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31963.

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 998194902 is about 31594.2226047738. Note that the first 3 decimals coincide. The cubic root of 998194902 is about 999.3979382611.

The spelling of 998194902 in words is "nine hundred ninety-eight million, one hundred ninety-four thousand, nine hundred two".