262040561 has 8 divisors (see below), whose sum is σ = 265007424. Its totient is φ = 259081200.

The previous prime is 262040543. The next prime is 262040563. The reversal of 262040561 is 165040262.

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 262040561 - 2¹⁰ = 262039537 is a prime.

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 262040561.

It is not an unprimeable number, because it can be changed into a prime (262040563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96326 + ... + 99008.

It is an arithmetic number, because the mean of its divisors is an integer number (33125928).

Almost surely, 2^262040561 is an apocalyptic number.

It is an amenable number.

262040561 is a deficient number, since it is larger than the sum of its proper divisors (2966863).

262040561 is a wasteful number, since it uses less digits than its factorization.

262040561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 262040561 is about 16187.6669412241. Note that the first 3 decimals coincide. The cubic root of 262040561 is about 639.9158100519.

The spelling of 262040561 in words is "two hundred sixty-two million, forty thousand, five hundred sixty-one".