215340198 has 32 divisors (see below), whose sum is σ = 445685760. Its totient is φ = 69290880.

The previous prime is 215340197. The next prime is 215340233. The reversal of 215340198 is 891043512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215340197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87886 + ... + 90302.

It is an arithmetic number, because the mean of its divisors is an integer number (13927680).

Almost surely, 2^215340198 is an apocalyptic number.

215340198 is an abundant number, since it is smaller than the sum of its proper divisors (230345562).

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

215340198 is a wasteful number, since it uses less digits than its factorization.

215340198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 215340198 is about 14674.4743687806. The cubic root of 215340198 is about 599.3884491098.

The spelling of 215340198 in words is "two hundred fifteen million, three hundred forty thousand, one hundred ninety-eight".