2260781 has 8 divisors (see below), whose sum is σ = 2353344. Its totient is φ = 2170080.

The previous prime is 2260771. The next prime is 2260787. The reversal of 2260781 is 1870622.

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 2260781 - 2⁶ = 2260717 is a prime.

It is a super-2 number, since 2×2260781² = 10222261459922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2260781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2260787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (294168).

2^2260781 is an apocalyptic number.

It is an amenable number.

2260781 is a deficient number, since it is larger than the sum of its proper divisors (92563).

2260781 is an equidigital number, since it uses as much as digits as its factorization.

2260781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2260781 is about 1503.5893721359. The cubic root of 2260781 is about 131.2460267883.

The spelling of 2260781 in words is "two million, two hundred sixty thousand, seven hundred eighty-one".