245621760 has 88 divisors (see below), whose sum is σ = 785654976. Its totient is φ = 65495040.

The previous prime is 245621743. The next prime is 245621771. The reversal of 245621760 is 67126542.

245621760 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7365 + ... + 23355.

Almost surely, 2^245621760 is an apocalyptic number.

245621760 is a gapful number since it is divisible by the number (20) 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 245621760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392827488).

245621760 is an abundant number, since it is smaller than the sum of its proper divisors (540033216).

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

245621760 is a wasteful number, since it uses less digits than its factorization.

245621760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16019 (or 16001 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 245621760 is about 15672.3246520738. The cubic root of 245621760 is about 626.2613545298.

The spelling of 245621760 in words is "two hundred forty-five million, six hundred twenty-one thousand, seven hundred sixty".