245552320 has 112 divisors (see below), whose sum is σ = 639823968. Its totient is φ = 89210880.

The previous prime is 245552273. The next prime is 245552323. The reversal of 245552320 is 23255542.

It is not an unprimeable number, because it can be changed into a prime (245552323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278280 + ... + 279160.

It is an arithmetic number, because the mean of its divisors is an integer number (5712714).

Almost surely, 2^245552320 is an apocalyptic number.

245552320 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 245552320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319911984).

245552320 is an abundant number, since it is smaller than the sum of its proper divisors (394271648).

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

245552320 is a wasteful number, since it uses less digits than its factorization.

245552320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 245552320 is about 15670.1091253380. The cubic root of 245552320 is about 626.2023319534.

The spelling of 245552320 in words is "two hundred forty-five million, five hundred fifty-two thousand, three hundred twenty".