40243210440 has 64 divisors (see below), whose sum is σ = 123298364160. Its totient is φ = 10503191040.

The previous prime is 40243210411. The next prime is 40243210457. The reversal of 40243210440 is 4401234204.

It is a happy number.

40243210440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40243210440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3562021 + ... + 3573300.

It is an arithmetic number, because the mean of its divisors is an integer number (1926536940).

Almost surely, 2^40243210440 is an apocalyptic number.

40243210440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40243210440 is an abundant number, since it is smaller than the sum of its proper divisors (83055153720).

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

40243210440 is a wasteful number, since it uses less digits than its factorization.

40243210440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135382 (or 7135378 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40243210440 its reverse (4401234204), we get a palindrome (44644444644).

The spelling of 40243210440 in words is "forty billion, two hundred forty-three million, two hundred ten thousand, four hundred forty".