68440275 has 48 divisors (see below), whose sum is σ = 128845920. Its totient is φ = 35596800.

The previous prime is 68440259. The next prime is 68440289. The reversal of 68440275 is 57204486.

It is not a de Polignac number, because 68440275 - 2⁴ = 68440259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26439 + ... + 28911.

It is an arithmetic number, because the mean of its divisors is an integer number (2684290).

Almost surely, 2^68440275 is an apocalyptic number.

68440275 is a deficient number, since it is larger than the sum of its proper divisors (60405645).

68440275 is a wasteful number, since it uses less digits than its factorization.

68440275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2522 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 68440275 is about 8272.8637726002. The cubic root of 68440275 is about 409.0445230234.

The spelling of 68440275 in words is "sixty-eight million, four hundred forty thousand, two hundred seventy-five".