245791788 has 48 divisors (see below), whose sum is σ = 628992000. Its totient is φ = 74084800.

The previous prime is 245791787. The next prime is 245791789. The reversal of 245791788 is 887197542.

It is an interprime number because it is at equal distance from previous prime (245791787) and next prime (245791789).

It is a self number, because there is not a number n which added to its sum of digits gives 245791788.

It is not an unprimeable number, because it can be changed into a prime (245791787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20338 + ... + 30086.

It is an arithmetic number, because the mean of its divisors is an integer number (13104000).

Almost surely, 2^245791788 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 245791788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314496000).

245791788 is an abundant number, since it is smaller than the sum of its proper divisors (383200212).

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

245791788 is a wasteful number, since it uses less digits than its factorization.

245791788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958 (or 9956 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 245791788 is about 15677.7481801437. The cubic root of 245791788 is about 626.4058278925.

The spelling of 245791788 in words is "two hundred forty-five million, seven hundred ninety-one thousand, seven hundred eighty-eight".