245687808 has 120 divisors (see below), whose sum is σ = 700247592. Its totient is φ = 76283904.

The previous prime is 245687801. The next prime is 245687821. The reversal of 245687808 is 808786542.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245687801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2532816 + ... + 2532912.

Almost surely, 2^245687808 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 245687808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350123796).

245687808 is an abundant number, since it is smaller than the sum of its proper divisors (454559784).

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

245687808 is an frugal number, since it uses more digits than its factorization.

245687808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 245687808 is about 15674.4316643379. The cubic root of 245687808 is about 626.3174836541.

The spelling of 245687808 in words is "two hundred forty-five million, six hundred eighty-seven thousand, eight hundred eight".