240263020686 has 32 divisors (see below), whose sum is σ = 522069156000. Its totient is φ = 73272858624.

The previous prime is 240263020649. The next prime is 240263020691. The reversal of 240263020686 is 686020362042.

240263020686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240263020686² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13620811 + ... + 13638438.

It is an arithmetic number, because the mean of its divisors is an integer number (16314661125).

Almost surely, 2^240263020686 is an apocalyptic number.

240263020686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

240263020686 is an abundant number, since it is smaller than the sum of its proper divisors (281806135314).

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

240263020686 is a wasteful number, since it uses less digits than its factorization.

240263020686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27259380.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 240263020686 in words is "two hundred forty billion, two hundred sixty-three million, twenty thousand, six hundred eighty-six".