268493745 has 64 divisors (see below), whose sum is σ = 485452800. Its totient is φ = 125798400.

The previous prime is 268493741. The next prime is 268493779. The reversal of 268493745 is 547394862.

It is not a de Polignac number, because 268493745 - 2² = 268493741 is a prime.

It is a super-2 number, since 2×268493745² = 144177782208250050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268493694 and 268493703.

It is not an unprimeable number, because it can be changed into a prime (268493741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 446445 + ... + 447045.

It is an arithmetic number, because the mean of its divisors is an integer number (7585200).

Almost surely, 2^268493745 is an apocalyptic number.

It is an amenable number.

268493745 is a deficient number, since it is larger than the sum of its proper divisors (216959055).

268493745 is a wasteful number, since it uses less digits than its factorization.

268493745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its digits is 1451520, while the sum is 48.

The square root of 268493745 is about 16385.7787425560. The cubic root of 268493745 is about 645.1262657678.

The spelling of 268493745 in words is "two hundred sixty-eight million, four hundred ninety-three thousand, seven hundred forty-five".