245745866 has 8 divisors (see below), whose sum is σ = 380509824. Its totient is φ = 118909260.

The previous prime is 245745847. The next prime is 245745901. The reversal of 245745866 is 668547542.

245745866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×245745866³ (a number of 26 digits) contains 333 as substring.

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 245745866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1981760 + ... + 1981883.

It is an arithmetic number, because the mean of its divisors is an integer number (47563728).

Almost surely, 2^245745866 is an apocalyptic number.

245745866 is a deficient number, since it is larger than the sum of its proper divisors (134763958).

245745866 is a wasteful number, since it uses less digits than its factorization.

245745866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963676.

The product of its digits is 1612800, while the sum is 47.

The square root of 245745866 is about 15676.2835519137. The cubic root of 245745866 is about 626.3668143839.

The spelling of 245745866 in words is "two hundred forty-five million, seven hundred forty-five thousand, eight hundred sixty-six".