245266780 has 24 divisors (see below), whose sum is σ = 561884400. Its totient is φ = 89187840.

The previous prime is 245266757. The next prime is 245266781. The reversal of 245266780 is 87662542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245266781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557205 + ... + 557644.

It is an arithmetic number, because the mean of its divisors is an integer number (23411850).

Almost surely, 2^245266780 is an apocalyptic number.

245266780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245266780 is an abundant number, since it is smaller than the sum of its proper divisors (316617620).

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

245266780 is a wasteful number, since it uses less digits than its factorization.

245266780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114869 (or 1114867 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 245266780 is about 15660.9954983711. The cubic root of 245266780 is about 625.9595117856.

The spelling of 245266780 in words is "two hundred forty-five million, two hundred sixty-six thousand, seven hundred eighty".