268705749 has 8 divisors (see below), whose sum is σ = 385833952. Its totient is φ = 165357360.

The previous prime is 268705747. The next prime is 268705763. The reversal of 268705749 is 947507862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268705749 - 2¹ = 268705747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268705698 and 268705707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268705747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3444907 + ... + 3444984.

It is an arithmetic number, because the mean of its divisors is an integer number (48229244).

Almost surely, 2^268705749 is an apocalyptic number.

It is an amenable number.

268705749 is a deficient number, since it is larger than the sum of its proper divisors (117128203).

268705749 is a wasteful number, since it uses less digits than its factorization.

268705749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889907.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 268705749 is about 16392.2466123469. The cubic root of 268705749 is about 645.2960194018.

The spelling of 268705749 in words is "two hundred sixty-eight million, seven hundred five thousand, seven hundred forty-nine".