245272320 has 288 divisors, whose sum is σ = 894781440. Its totient is φ = 63590400.

The previous prime is 245272309. The next prime is 245272331. The reversal of 245272320 is 23272542.

It is an interprime number because it is at equal distance from previous prime (245272309) and next prime (245272331).

It is a tau number, because it is divible by the number of its divisors (288).

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

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 31 ways as a sum of consecutive naturals, for example, 1624245 + ... + 1624395.

It is an arithmetic number, because the mean of its divisors is an integer number (3106880).

Almost surely, 2^245272320 is an apocalyptic number.

245272320 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 245272320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447390720).

245272320 is an abundant number, since it is smaller than the sum of its proper divisors (649509120).

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

245272320 is a wasteful number, since it uses less digits than its factorization.

245272320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 245272320 is about 15661.1723699090. The cubic root of 245272320 is about 625.9642247347.

The spelling of 245272320 in words is "two hundred forty-five million, two hundred seventy-two thousand, three hundred twenty".