240320856 has 64 divisors (see below), whose sum is σ = 611896320. Its totient is φ = 78641280.

The previous prime is 240320831. The next prime is 240320867. The reversal of 240320856 is 658023042.

240320856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240320856² = 115508227657145472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443946 + ... + 444486.

It is an arithmetic number, because the mean of its divisors is an integer number (9560880).

Almost surely, 2^240320856 is an apocalyptic number.

It is an amenable number.

240320856 is an abundant number, since it is smaller than the sum of its proper divisors (371575464).

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

240320856 is a wasteful number, since it uses less digits than its factorization.

240320856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 240320856 is about 15502.2855089177. The cubic root of 240320856 is about 621.7233151457.

Adding to 240320856 its reverse (658023042), we get a palindrome (898343898).

The spelling of 240320856 in words is "two hundred forty million, three hundred twenty thousand, eight hundred fifty-six".