245511228 has 12 divisors (see below), whose sum is σ = 572859560. Its totient is φ = 81837072.

The previous prime is 245511197. The next prime is 245511241. The reversal of 245511228 is 822115542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 245511195 and 245511204.

It is a congruent number.

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, 10229623 + ... + 10229646.

Almost surely, 2^245511228 is an apocalyptic number.

It is an amenable number.

245511228 is an abundant number, since it is smaller than the sum of its proper divisors (327348332).

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

245511228 is a wasteful number, since it uses less digits than its factorization.

245511228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20459276 (or 20459274 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 245511228 is about 15668.7979117736. The cubic root of 245511228 is about 626.1673993550.

The spelling of 245511228 in words is "two hundred forty-five million, five hundred eleven thousand, two hundred twenty-eight".