40230555156 has 144 divisors (see below), whose sum is σ = 116789662080. Its totient is φ = 11557539840.

The previous prime is 40230555061. The next prime is 40230555163. The reversal of 40230555156 is 65155503204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40230555156.

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 47 ways as a sum of consecutive naturals, for example, 1009660 + ... + 1048748.

It is an arithmetic number, because the mean of its divisors is an integer number (811039320).

Almost surely, 2^40230555156 is an apocalyptic number.

40230555156 is a gapful number since it is divisible by the number (46) 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 40230555156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58394831040).

40230555156 is an abundant number, since it is smaller than the sum of its proper divisors (76559106924).

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

40230555156 is a wasteful number, since it uses less digits than its factorization.

40230555156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39246 (or 39241 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 40230555156 in words is "forty billion, two hundred thirty million, five hundred fifty-five thousand, one hundred fifty-six".