260528399 has 8 divisors (see below), whose sum is σ = 274800000. Its totient is φ = 246312792.

The previous prime is 260528381. The next prime is 260528407. The reversal of 260528399 is 993825062.

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

It is a cyclic number.

It is not a de Polignac number, because 260528399 - 2⁸ = 260528143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260528329) 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, 4259 + ... + 23220.

It is an arithmetic number, because the mean of its divisors is an integer number (34350000).

Almost surely, 2^260528399 is an apocalyptic number.

260528399 is a deficient number, since it is larger than the sum of its proper divisors (14271601).

260528399 is a wasteful number, since it uses less digits than its factorization.

260528399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27997.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 260528399 is about 16140.8921376732. The cubic root of 260528399 is about 638.6825102463.

The spelling of 260528399 in words is "two hundred sixty million, five hundred twenty-eight thousand, three hundred ninety-nine".