40243268233840 has 40 divisors (see below), whose sum is σ = 106932112737120. Its totient is φ = 13797691965696.

The previous prime is 40243268233823. The next prime is 40243268233859. The reversal of 40243268233840 is 4833286234204.

40243268233840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×40243268233840² (a number of 28 digits) 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35931488935 + ... + 35931490054.

It is an arithmetic number, because the mean of its divisors is an integer number (2673302818428).

Almost surely, 2^{40243268233840} is an apocalyptic number.

40243268233840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40243268233840 is an abundant number, since it is smaller than the sum of its proper divisors (66688844503280).

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

40243268233840 is a wasteful number, since it uses less digits than its factorization.

40243268233840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71862979009 (or 71862979003 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 49.

The spelling of 40243268233840 in words is "forty trillion, two hundred forty-three billion, two hundred sixty-eight million, two hundred thirty-three thousand, eight hundred forty".