245707449 has 16 divisors (see below), whose sum is σ = 371380800. Its totient is φ = 143246016.

The previous prime is 245707439. The next prime is 245707463. The reversal of 245707449 is 944707542.

It is not a de Polignac number, because 245707449 - 2⁸ = 245707193 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245707449.

It is not an unprimeable number, because it can be changed into a prime (245707439) 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, 165054 + ... + 166535.

It is an arithmetic number, because the mean of its divisors is an integer number (23211300).

Almost surely, 2^245707449 is an apocalyptic number.

It is an amenable number.

245707449 is a deficient number, since it is larger than the sum of its proper divisors (125673351).

245707449 is a wasteful number, since it uses less digits than its factorization.

245707449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331624.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 245707449 is about 15675.0581817102. The cubic root of 245707449 is about 626.3341730916.

The spelling of 245707449 in words is "two hundred forty-five million, seven hundred seven thousand, four hundred forty-nine".