1998680252 has 24 divisors (see below), whose sum is σ = 3514348992. Its totient is φ = 994593600.

The previous prime is 1998680249. The next prime is 1998680263. The reversal of 1998680252 is 2520868991.

It is a self number, because there is not a number n which added to its sum of digits gives 1998680252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852602 + ... + 854942.

It is an arithmetic number, because the mean of its divisors is an integer number (146431208).

Almost surely, 2^1998680252 is an apocalyptic number.

It is an amenable number.

1998680252 is a deficient number, since it is larger than the sum of its proper divisors (1515668740).

1998680252 is a wasteful number, since it uses less digits than its factorization.

1998680252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1998680252 is about 44706.6018838381. The cubic root of 1998680252 is about 1259.6438592013.

The spelling of 1998680252 in words is "one billion, nine hundred ninety-eight million, six hundred eighty thousand, two hundred fifty-two".