245686924 has 48 divisors (see below), whose sum is σ = 533010240. Its totient is φ = 96675840.

The previous prime is 245686879. The next prime is 245686937. The reversal of 245686924 is 429686542.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13222 + ... + 25810.

It is an arithmetic number, because the mean of its divisors is an integer number (11104380).

Almost surely, 2^245686924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245686924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266505120).

245686924 is an abundant number, since it is smaller than the sum of its proper divisors (287323316).

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

245686924 is a wasteful number, since it uses less digits than its factorization.

245686924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12658 (or 12656 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 245686924 is about 15674.4034655230. The cubic root of 245686924 is about 626.3167324768.

The spelling of 245686924 in words is "two hundred forty-five million, six hundred eighty-six thousand, nine hundred twenty-four".