260352749 has 4 divisors (see below), whose sum is σ = 269330460. Its totient is φ = 251375040.

The previous prime is 260352733. The next prime is 260352761. The reversal of 260352749 is 947253062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68724100 + 191628649 = 8290^2 + 13843^2 .

It is a cyclic number.

It is not a de Polignac number, because 260352749 - 2⁴ = 260352733 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 (260352769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4488812 + ... + 4488869.

It is an arithmetic number, because the mean of its divisors is an integer number (67332615).

Almost surely, 2^260352749 is an apocalyptic number.

260352749 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

260352749 is a deficient number, since it is larger than the sum of its proper divisors (8977711).

260352749 is an equidigital number, since it uses as much as digits as its factorization.

260352749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977710.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 260352749 is about 16135.4500711942. The cubic root of 260352749 is about 638.5389432946.

The spelling of 260352749 in words is "two hundred sixty million, three hundred fifty-two thousand, seven hundred forty-nine".