259242228 has 96 divisors (see below), whose sum is σ = 773964800. Its totient is φ = 73506528.

The previous prime is 259242211. The next prime is 259242241. The reversal of 259242228 is 822242952.

259242228 is a `hidden beast` number, since 2 + 592 + 42 + 2 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 259242192 and 259242201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103851 + ... + 106317.

Almost surely, 2^259242228 is an apocalyptic number.

259242228 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 259242228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386982400).

259242228 is an abundant number, since it is smaller than the sum of its proper divisors (514722572).

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

259242228 is a wasteful number, since it uses less digits than its factorization.

259242228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626 (or 2618 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 259242228 is about 16101.0008384572. Note that the first 3 decimals coincide. The cubic root of 259242228 is about 637.6297645878.

The spelling of 259242228 in words is "two hundred fifty-nine million, two hundred forty-two thousand, two hundred twenty-eight".