245044280 has 64 divisors (see below), whose sum is σ = 595758240. Its totient is φ = 90173952.

The previous prime is 245044279. The next prime is 245044297. The reversal of 245044280 is 82440542.

It is a plaindrome in base 14.

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 15 ways as a sum of consecutive naturals, for example, 205847 + ... + 207033.

Almost surely, 2^245044280 is an apocalyptic number.

245044280 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 245044280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297879120).

245044280 is an abundant number, since it is smaller than the sum of its proper divisors (350713960).

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

245044280 is a wasteful number, since it uses less digits than its factorization.

245044280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 245044280 is about 15653.8902513081. The cubic root of 245044280 is about 625.7701694858.

The spelling of 245044280 in words is "two hundred forty-five million, forty-four thousand, two hundred eighty".