245445120 has 320 divisors, whose sum is σ = 901549440. Its totient is φ = 63258624.

The previous prime is 245445107. The next prime is 245445127. The reversal of 245445120 is 21544542.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (245445127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3663327 + ... + 3663393.

It is an arithmetic number, because the mean of its divisors is an integer number (2817342).

Almost surely, 2^245445120 is an apocalyptic number.

245445120 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 245445120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450774720).

245445120 is an abundant number, since it is smaller than the sum of its proper divisors (656104320).

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

245445120 is an equidigital number, since it uses as much as digits as its factorization.

245445120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 245445120 is about 15666.6882269355. The cubic root of 245445120 is about 626.1111922985. Note that the first 4 decimals are identical.

Adding to 245445120 its reverse (21544542), we get a palindrome (266989662).

It can be divided in two parts, 2454 and 45120, that added together give a palindrome (47574).

The spelling of 245445120 in words is "two hundred forty-five million, four hundred forty-five thousand, one hundred twenty".