245686386 has 24 divisors (see below), whose sum is σ = 540105552. Its totient is φ = 74450200.

The previous prime is 245686381. The next prime is 245686409. The reversal of 245686386 is 683686542.

It is not an unprimeable number, because it can be changed into a prime (245686381) 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, 168480 + ... + 169931.

It is an arithmetic number, because the mean of its divisors is an integer number (22504398).

Almost surely, 2^245686386 is an apocalyptic number.

245686386 is an abundant number, since it is smaller than the sum of its proper divisors (294419166).

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

245686386 is a wasteful number, since it uses less digits than its factorization.

245686386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338438 (or 338427 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The square root of 245686386 is about 15674.3863037760. The cubic root of 245686386 is about 626.3162753115.

The spelling of 245686386 in words is "two hundred forty-five million, six hundred eighty-six thousand, three hundred eighty-six".