245617216 has 112 divisors (see below), whose sum is σ = 553029120. Its totient is φ = 107458560.

The previous prime is 245617189. The next prime is 245617219. The reversal of 245617216 is 612716542.

Its product of digits (20160) is a multiple of the sum of its prime factors (252).

It is not an unprimeable number, because it can be changed into a prime (245617219) 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, 2295435 + ... + 2295541.

It is an arithmetic number, because the mean of its divisors is an integer number (4937760).

Almost surely, 2^245617216 is an apocalyptic number.

245617216 is a gapful number since it is divisible by the number (26) 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 245617216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276514560).

245617216 is an abundant number, since it is smaller than the sum of its proper divisors (307411904).

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

245617216 is a wasteful number, since it uses less digits than its factorization.

245617216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 242 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 245617216 is about 15672.1796824819. The cubic root of 245617216 is about 626.2574925631.

The spelling of 245617216 in words is "two hundred forty-five million, six hundred seventeen thousand, two hundred sixteen".