245580385 has 8 divisors (see below), whose sum is σ = 312031656. Its totient is φ = 184907520.

The previous prime is 245580383. The next prime is 245580443. The reversal of 245580385 is 583085542.

It can be written as a sum of positive squares in 4 ways, for example, as 88228449 + 157351936 = 9393^2 + 12544^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245580385 - 2¹ = 245580383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245580383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444506 + ... + 1444675.

It is an arithmetic number, because the mean of its divisors is an integer number (39003957).

Almost surely, 2^245580385 is an apocalyptic number.

It is an amenable number.

245580385 is a deficient number, since it is larger than the sum of its proper divisors (66451271).

245580385 is a wasteful number, since it uses less digits than its factorization.

245580385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889203.

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 245580385 is about 15671.0045944732. The cubic root of 245580385 is about 626.2261879677.

The spelling of 245580385 in words is "two hundred forty-five million, five hundred eighty thousand, three hundred eighty-five".