245268864 has 64 divisors (see below), whose sum is σ = 723894000. Its totient is φ = 81755136.

The previous prime is 245268799. The next prime is 245268887. The reversal of 245268864 is 468862542.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32029 + ... + 38940.

Almost surely, 2^245268864 is an apocalyptic number.

245268864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245268864 is an abundant number, since it is smaller than the sum of its proper divisors (478625136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245268864 is an equidigital number, since it uses as much as digits as its factorization.

245268864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70992 (or 70974 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 245268864 is about 15661.0620329529. The cubic root of 245268864 is about 625.9612846795.

The spelling of 245268864 in words is "two hundred forty-five million, two hundred sixty-eight thousand, eight hundred sixty-four".