1328202492 has 12 divisors (see below), whose sum is σ = 3099139176. Its totient is φ = 442734160.

The previous prime is 1328202481. The next prime is 1328202509. The reversal of 1328202492 is 2942028231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1328202492³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 55341759 + ... + 55341782.

It is an arithmetic number, because the mean of its divisors is an integer number (258261598).

Almost surely, 2^1328202492 is an apocalyptic number.

1328202492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1328202492 is an abundant number, since it is smaller than the sum of its proper divisors (1770936684).

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

1328202492 is a wasteful number, since it uses less digits than its factorization.

1328202492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110683548 (or 110683546 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1328202492 is about 36444.5125087440. The cubic root of 1328202492 is about 1099.2287960787.

The spelling of 1328202492 in words is "one billion, three hundred twenty-eight million, two hundred two thousand, four hundred ninety-two".