245254220 has 12 divisors (see below), whose sum is σ = 515033904. Its totient is φ = 98101680.

The previous prime is 245254213. The next prime is 245254259. The reversal of 245254220 is 22452542.

It is a self number, because there is not a number n which added to its sum of digits gives 245254220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6131336 + ... + 6131375.

It is an arithmetic number, because the mean of its divisors is an integer number (42919492).

Almost surely, 2^245254220 is an apocalyptic number.

245254220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245254220 is an abundant number, since it is smaller than the sum of its proper divisors (269779684).

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

245254220 is a wasteful number, since it uses less digits than its factorization.

245254220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262720 (or 12262718 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 245254220 is about 15660.5944970170. The cubic root of 245254220 is about 625.9488265694.

The spelling of 245254220 in words is "two hundred forty-five million, two hundred fifty-four thousand, two hundred twenty".