198437340 has 24 divisors (see below), whose sum is σ = 555624720. Its totient is φ = 52916608.

The previous prime is 198437339. The next prime is 198437347. The reversal of 198437340 is 43734891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198437347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653585 + ... + 1653704.

It is an arithmetic number, because the mean of its divisors is an integer number (23151030).

Almost surely, 2^198437340 is an apocalyptic number.

198437340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198437340 is an abundant number, since it is smaller than the sum of its proper divisors (357187380).

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

198437340 is a wasteful number, since it uses less digits than its factorization.

198437340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307301 (or 3307299 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 198437340 is about 14086.7789078980. The cubic root of 198437340 is about 583.2764817157.

The spelling of 198437340 in words is "one hundred ninety-eight million, four hundred thirty-seven thousand, three hundred forty".