245683872 has 72 divisors (see below), whose sum is σ = 798479136. Its totient is φ = 70194816.

The previous prime is 245683871. The next prime is 245683883. The reversal of 245683872 is 278386542.

245683872 is a `hidden beast` number, since 2 + 4 + 568 + 3 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (245683871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58918 + ... + 62949.

It is an arithmetic number, because the mean of its divisors is an integer number (11089988).

Almost surely, 2^245683872 is an apocalyptic number.

It is an amenable number.

245683872 is an abundant number, since it is smaller than the sum of its proper divisors (552795264).

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

245683872 is a wasteful number, since it uses less digits than its factorization.

245683872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121890 (or 121879 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 245683872 is about 15674.3061090436. The cubic root of 245683872 is about 626.3141390318.

The spelling of 245683872 in words is "two hundred forty-five million, six hundred eighty-three thousand, eight hundred seventy-two".