998421302 has 4 divisors (see below), whose sum is σ = 1497631956. Its totient is φ = 499210650.

The previous prime is 998421301. The next prime is 998421323. The reversal of 998421302 is 203124899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203124899 = 3061 ⋅66359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998421301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249605324 + ... + 249605327.

It is an arithmetic number, because the mean of its divisors is an integer number (374407989).

Almost surely, 2^998421302 is an apocalyptic number.

998421302 is a deficient number, since it is larger than the sum of its proper divisors (499210654).

998421302 is a wasteful number, since it uses less digits than its factorization.

998421302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499210653.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 998421302 is about 31597.8053351811. The cubic root of 998421302 is about 999.4734901694.

The spelling of 998421302 in words is "nine hundred ninety-eight million, four hundred twenty-one thousand, three hundred two".