40141818 has 60 divisors (see below), whose sum is σ = 92954862. Its totient is φ = 12947040.

The previous prime is 40141817. The next prime is 40141837. The reversal of 40141818 is 81814104.

40141818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 37124649 + 3017169 = 6093^2 + 1737^2 .

It is a super-2 number, since 2×40141818² = 3222731104690248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40141791 and 40141800.

It is not an unprimeable number, because it can be changed into a prime (40141817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 221688 + ... + 221868.

Almost surely, 2^40141818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40141818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46477431).

40141818 is an abundant number, since it is smaller than the sum of its proper divisors (52813044).

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

40141818 is a wasteful number, since it uses less digits than its factorization.

40141818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 40141818 is about 6335.7570976167. The cubic root of 40141818 is about 342.3988882272.

It can be divided in two parts, 4014 and 1818, that added together give a cube (5832 = 18³).

The spelling of 40141818 in words is "forty million, one hundred forty-one thousand, eight hundred eighteen".