1398202998 has 8 divisors (see below), whose sum is σ = 2796406008. Its totient is φ = 466067664.

The previous prime is 1398202997. The next prime is 1398203003. The reversal of 1398202998 is 8992028931.

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

1398202998 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1398202998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398202997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116516911 + ... + 116516922.

It is an arithmetic number, because the mean of its divisors is an integer number (349550751).

Almost surely, 2^1398202998 is an apocalyptic number.

1398202998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1398202998 is a wasteful number, since it uses less digits than its factorization.

1398202998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233033838.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 1398202998 is about 37392.5527077251. The cubic root of 1398202998 is about 1118.2100975584.

The spelling of 1398202998 in words is "one billion, three hundred ninety-eight million, two hundred two thousand, nine hundred ninety-eight".