40223133240 has 128 divisors (see below), whose sum is σ = 126299174400. Its totient is φ = 10228584960.

The previous prime is 40223133227. The next prime is 40223133283. The reversal of 40223133240 is 4233132204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40223133240.

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 31 ways as a sum of consecutive naturals, for example, 891546 + ... + 935574.

It is an arithmetic number, because the mean of its divisors is an integer number (986712300).

Almost surely, 2^40223133240 is an apocalyptic number.

40223133240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40223133240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63149587200).

40223133240 is an abundant number, since it is smaller than the sum of its proper divisors (86076041160).

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

40223133240 is a wasteful number, since it uses less digits than its factorization.

40223133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44397 (or 44393 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40223133240 its reverse (4233132204), we get a palindrome (44456265444).

The spelling of 40223133240 in words is "forty billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred forty".