260198389 has 8 divisors (see below), whose sum is σ = 284251968. Its totient is φ = 236211360.

The previous prime is 260198383. The next prime is 260198399. The reversal of 260198389 is 983891062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260198389 - 2³ = 260198381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260198381) 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 7 ways as a sum of consecutive naturals, for example, 8272 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (35531496).

Almost surely, 2^260198389 is an apocalyptic number.

It is an amenable number.

260198389 is a deficient number, since it is larger than the sum of its proper divisors (24053579).

260198389 is a wasteful number, since it uses less digits than its factorization.

260198389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33275.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 260198389 is about 16130.6661052791. Note that the first 3 decimals coincide. The cubic root of 260198389 is about 638.4127243380.

The spelling of 260198389 in words is "two hundred sixty million, one hundred ninety-eight thousand, three hundred eighty-nine".