1198546420 has 24 divisors (see below), whose sum is σ = 2525158944. Its totient is φ = 477854496.

The previous prime is 1198546409. The next prime is 1198546457. The reversal of 1198546420 is 246458911.

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 7 ways as a sum of consecutive naturals, for example, 91462 + ... + 103741.

It is an arithmetic number, because the mean of its divisors is an integer number (105214956).

Almost surely, 2^1198546420 is an apocalyptic number.

1198546420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198546420 is an abundant number, since it is smaller than the sum of its proper divisors (1326612524).

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

1198546420 is a wasteful number, since it uses less digits than its factorization.

1198546420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195519 (or 195517 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1198546420 is about 34620.0291738756. The cubic root of 1198546420 is about 1062.2293238066.

The spelling of 1198546420 in words is "one billion, one hundred ninety-eight million, five hundred forty-six thousand, four hundred twenty".