197910432 has 96 divisors (see below), whose sum is σ = 581313600. Its totient is φ = 65505024.

The previous prime is 197910431. The next prime is 197910439. The reversal of 197910432 is 234019791.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (197910431) 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 15 ways as a sum of consecutive naturals, for example, 134919 + ... + 136377.

It is an arithmetic number, because the mean of its divisors is an integer number (6055350).

Almost surely, 2^197910432 is an apocalyptic number.

197910432 is a gapful number since it is divisible by the number (12) 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 197910432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290656800).

197910432 is an abundant number, since it is smaller than the sum of its proper divisors (383403168).

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

197910432 is a wasteful number, since it uses less digits than its factorization.

197910432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 197910432 is about 14068.0642591652. The cubic root of 197910432 is about 582.7597687061.

The spelling of 197910432 in words is "one hundred ninety-seven million, nine hundred ten thousand, four hundred thirty-two".