268904453 has 8 divisors (see below), whose sum is σ = 286371288. Its totient is φ = 251620864.

The previous prime is 268904407. The next prime is 268904459. The reversal of 268904453 is 354409862.

It can be written as a sum of positive squares in 4 ways, for example, as 76860289 + 192044164 = 8767^2 + 13858^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268904453 is a prime.

It is a super-3 number, since 3×268904453³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 268904453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268904459) 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, 42776 + ... + 48657.

It is an arithmetic number, because the mean of its divisors is an integer number (35796411).

Almost surely, 2^268904453 is an apocalyptic number.

It is an amenable number.

268904453 is a deficient number, since it is larger than the sum of its proper divisors (17466835).

268904453 is a wasteful number, since it uses less digits than its factorization.

268904453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91623.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 268904453 is about 16398.3064064555. The cubic root of 268904453 is about 645.4550425555.

The spelling of 268904453 in words is "two hundred sixty-eight million, nine hundred four thousand, four hundred fifty-three".