245647904 has 24 divisors (see below), whose sum is σ = 484989120. Its totient is φ = 122476096.

The previous prime is 245647901. The next prime is 245647907. The reversal of 245647904 is 409746542.

245647904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245647901) and next prime (245647907).

It is a super-3 number, since 3×245647904³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (245647901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797 + ... + 22179.

It is an arithmetic number, because the mean of its divisors is an integer number (20207880).

Almost surely, 2^245647904 is an apocalyptic number.

It is an amenable number.

245647904 is a deficient number, since it is larger than the sum of its proper divisors (239341216).

245647904 is a wasteful number, since it uses less digits than its factorization.

245647904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21752 (or 21744 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 245647904 is about 15673.1587116318. The cubic root of 245647904 is about 626.2835735112.

The spelling of 245647904 in words is "two hundred forty-five million, six hundred forty-seven thousand, nine hundred four".