268997445 has 24 divisors (see below), whose sum is σ = 469676376. Its totient is φ = 142414848.

The previous prime is 268997431. The next prime is 268997467. The reversal of 268997445 is 544799862.

It can be written as a sum of positive squares in 4 ways, for example, as 91814724 + 177182721 = 9582^2 + 13311^2 .

It is not a de Polignac number, because 268997445 - 2⁵ = 268997413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268997391 and 268997400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15652 + ... + 27981.

It is an arithmetic number, because the mean of its divisors is an integer number (19569849).

Almost surely, 2^268997445 is an apocalyptic number.

It is an amenable number.

268997445 is a deficient number, since it is larger than the sum of its proper divisors (200678931).

268997445 is a wasteful number, since it uses less digits than its factorization.

268997445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43781 (or 43778 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 268997445 is about 16401.1415761221. The cubic root of 268997445 is about 645.5294373044.

The spelling of 268997445 in words is "two hundred sixty-eight million, nine hundred ninety-seven thousand, four hundred forty-five".