256018236 has 24 divisors (see below), whose sum is σ = 628817280. Its totient is φ = 80847792.

The previous prime is 256018229. The next prime is 256018241. The reversal of 256018236 is 632810652.

256018236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256018197 and 256018206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561216 + ... + 561671.

It is an arithmetic number, because the mean of its divisors is an integer number (26200720).

Almost surely, 2^256018236 is an apocalyptic number.

It is an amenable number.

256018236 is an abundant number, since it is smaller than the sum of its proper divisors (372799044).

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

256018236 is a wasteful number, since it uses less digits than its factorization.

256018236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122913 (or 1122911 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 256018236 is about 16000.5698648517. The cubic root of 256018236 is about 634.9754974322.

Adding to 256018236 its reverse (632810652), we get a palindrome (888828888).

The spelling of 256018236 in words is "two hundred fifty-six million, eighteen thousand, two hundred thirty-six".