245280807 has 24 divisors (see below), whose sum is σ = 364927680. Its totient is φ = 158639040.

The previous prime is 245280799. The next prime is 245280821. The reversal of 245280807 is 708082542.

It is a happy number.

It is not a de Polignac number, because 245280807 - 2³ = 245280799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245280887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142669 + ... + 144377.

It is an arithmetic number, because the mean of its divisors is an integer number (15205320).

Almost surely, 2^245280807 is an apocalyptic number.

245280807 is a deficient number, since it is larger than the sum of its proper divisors (119646873).

245280807 is a wasteful number, since it uses less digits than its factorization.

245280807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 245280807 is about 15661.4433242917. The cubic root of 245280807 is about 625.9714445970.

The spelling of 245280807 in words is "two hundred forty-five million, two hundred eighty thousand, eight hundred seven".