40243004120 has 128 divisors (see below), whose sum is σ = 101626367040. Its totient is φ = 14213283840.

The previous prime is 40243004101. The next prime is 40243004149. The reversal of 40243004120 is 2140034204.

40243004120 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 40243004092 and 40243004101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10954604 + ... + 10958276.

Almost surely, 2^40243004120 is an apocalyptic number.

40243004120 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 40243004120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50813183520).

40243004120 is an abundant number, since it is smaller than the sum of its proper divisors (61383362920).

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

40243004120 is a wasteful number, since it uses less digits than its factorization.

40243004120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405 (or 4401 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40243004120 its reverse (2140034204), we get a palindrome (42383038324).

The spelling of 40243004120 in words is "forty billion, two hundred forty-three million, four thousand, one hundred twenty".