268992541 has 4 divisors (see below), whose sum is σ = 269025372. Its totient is φ = 268959712.

The previous prime is 268992533. The next prime is 268992583. The reversal of 268992541 is 145299862.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145299862 = 2 ⋅72649931.

It can be written as a sum of positive squares in 2 ways, for example, as 202635225 + 66357316 = 14235^2 + 8146^2 .

It is a cyclic number.

It is not a de Polignac number, because 268992541 - 2³ = 268992533 is a prime.

It is a super-2 number, since 2×268992541² = 144713974227273362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268992491 and 268992500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268992041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7191 + ... + 24283.

It is an arithmetic number, because the mean of its divisors is an integer number (67256343).

Almost surely, 2^268992541 is an apocalyptic number.

It is an amenable number.

268992541 is a deficient number, since it is larger than the sum of its proper divisors (32831).

268992541 is a wasteful number, since it uses less digits than its factorization.

268992541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32830.

The product of its digits is 311040, while the sum is 46.

The square root of 268992541 is about 16400.9920736521. The cubic root of 268992541 is about 645.5255144721.

The spelling of 268992541 in words is "two hundred sixty-eight million, nine hundred ninety-two thousand, five hundred forty-one".