245666260 has 96 divisors (see below), whose sum is σ = 610541568. Its totient is φ = 81285120.

The previous prime is 245666249. The next prime is 245666293. The reversal of 245666260 is 62666542.

It is a happy number.

It is a super-2 number, since 2×245666260² = 120703822604775200, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 728812 + ... + 729148.

It is an arithmetic number, because the mean of its divisors is an integer number (6359808).

Almost surely, 2^245666260 is an apocalyptic number.

245666260 is a gapful number since it is divisible by the number (20) 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 245666260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305270784).

245666260 is an abundant number, since it is smaller than the sum of its proper divisors (364875308).

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

245666260 is a wasteful number, since it uses less digits than its factorization.

245666260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 245666260 is about 15673.7442878210. The cubic root of 245666260 is about 626.2991727690.

The spelling of 245666260 in words is "two hundred forty-five million, six hundred sixty-six thousand, two hundred sixty".