245161760 has 96 divisors (see below), whose sum is σ = 617993712. Its totient is φ = 91586560.

The previous prime is 245161757. The next prime is 245161781. The reversal of 245161760 is 67161542.

It can be written as a sum of positive squares in 8 ways, for example, as 171819664 + 73342096 = 13108^2 + 8564^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470300 + ... + 470820.

Almost surely, 2^245161760 is an apocalyptic number.

245161760 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 245161760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308996856).

245161760 is an abundant number, since it is smaller than the sum of its proper divisors (372831952).

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

245161760 is a wasteful number, since it uses less digits than its factorization.

245161760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 245161760 is about 15657.6422235278. The cubic root of 245161760 is about 625.8701564954.

It can be divided in two parts, 2 and 45161760, that multiplied together give a triangular number (90323520 = T₁₃₄₄₀).

The spelling of 245161760 in words is "two hundred forty-five million, one hundred sixty-one thousand, seven hundred sixty".