240256636 has 6 divisors (see below), whose sum is σ = 420449120. Its totient is φ = 120128316.

The previous prime is 240256607. The next prime is 240256637. The reversal of 240256636 is 636652042.

It is a super-2 number, since 2×240256636² = 115446502284072992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240256637) by changing a digit.

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 as a sum of consecutive naturals, namely, 30032076 + ... + 30032083.

Almost surely, 2^240256636 is an apocalyptic number.

It is an amenable number.

240256636 is a deficient number, since it is larger than the sum of its proper divisors (180192484).

240256636 is a wasteful number, since it uses less digits than its factorization.

240256636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60064163 (or 60064161 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 240256636 is about 15500.2140630380. The cubic root of 240256636 is about 621.6679299841.

The spelling of 240256636 in words is "two hundred forty million, two hundred fifty-six thousand, six hundred thirty-six".