245873664 has 88 divisors (see below), whose sum is σ = 728240720. Its totient is φ = 81948672.

The previous prime is 245873659. The next prime is 245873671. The reversal of 245873664 is 466378542.

245873664 is a `hidden beast` number, since 2 + 4 + 587 + 3 + 6 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23202 + ... + 32094.

Almost surely, 2^245873664 is an apocalyptic number.

245873664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245873664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364120360).

245873664 is an abundant number, since it is smaller than the sum of its proper divisors (482367056).

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

245873664 is an equidigital number, since it uses as much as digits as its factorization.

245873664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922 (or 8898 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 245873664 is about 15680.3591795596. The cubic root of 245873664 is about 626.4753744386.

The spelling of 245873664 in words is "two hundred forty-five million, eight hundred seventy-three thousand, six hundred sixty-four".