245742868 has 48 divisors (see below), whose sum is σ = 516136320. Its totient is φ = 100146816.

The previous prime is 245742853. The next prime is 245742899. The reversal of 245742868 is 868247542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52146 + ... + 56662.

It is an arithmetic number, because the mean of its divisors is an integer number (10752840).

Almost surely, 2^245742868 is an apocalyptic number.

245742868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245742868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258068160).

245742868 is an abundant number, since it is smaller than the sum of its proper divisors (270393452).

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

245742868 is a wasteful number, since it uses less digits than its factorization.

245742868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624 (or 4622 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 245742868 is about 15676.1879294681. The cubic root of 245742868 is about 626.3642672331.

The spelling of 245742868 in words is "two hundred forty-five million, seven hundred forty-two thousand, eight hundred sixty-eight".