197840016 has 320 divisors, whose sum is σ = 685670400. Its totient is φ = 53913600.

The previous prime is 197839981. The next prime is 197840023. The reversal of 197840016 is 610048791.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2504265 + ... + 2504343.

It is an arithmetic number, because the mean of its divisors is an integer number (2142720).

Almost surely, 2^197840016 is an apocalyptic number.

197840016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197840016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342835200).

197840016 is an abundant number, since it is smaller than the sum of its proper divisors (487830384).

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

197840016 is a wasteful number, since it uses less digits than its factorization.

197840016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 197840016 is about 14065.5613467789. The cubic root of 197840016 is about 582.6906457208.

The spelling of 197840016 in words is "one hundred ninety-seven million, eight hundred forty thousand, sixteen".