245865836 has 24 divisors (see below), whose sum is σ = 453605376. Its totient is φ = 116433360.

The previous prime is 245865827. The next prime is 245865863. The reversal of 245865836 is 638568542.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15266 + ... + 26921.

It is an arithmetic number, because the mean of its divisors is an integer number (18900224).

Almost surely, 2^245865836 is an apocalyptic number.

It is an amenable number.

245865836 is a deficient number, since it is larger than the sum of its proper divisors (207739540).

245865836 is a wasteful number, since it uses less digits than its factorization.

245865836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42269 (or 42267 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The square root of 245865836 is about 15680.1095659437. The cubic root of 245865836 is about 626.4687259005.

The spelling of 245865836 in words is "two hundred forty-five million, eight hundred sixty-five thousand, eight hundred thirty-six".