245723860 has 24 divisors (see below), whose sum is σ = 524482056. Its totient is φ = 96677760.

The previous prime is 245723857. The next prime is 245723869. The reversal of 245723860 is 68327542.

It can be written as a sum of positive squares in 4 ways, for example, as 5225796 + 240498064 = 2286^2 + 15508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245723869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99487 + ... + 101926.

It is an arithmetic number, because the mean of its divisors is an integer number (21853419).

Almost surely, 2^245723860 is an apocalyptic number.

245723860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245723860 is an abundant number, since it is smaller than the sum of its proper divisors (278758196).

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

245723860 is a wasteful number, since it uses less digits than its factorization.

245723860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201483 (or 201481 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 245723860 is about 15675.5816479007. The cubic root of 245723860 is about 626.3481172371.

The spelling of 245723860 in words is "two hundred forty-five million, seven hundred twenty-three thousand, eight hundred sixty".