40618080 has 144 divisors (see below), whose sum is σ = 141012144. Its totient is φ = 10644480.

The previous prime is 40618073. The next prime is 40618093. The reversal of 40618080 is 8081604.

40618080 is a `hidden beast` number, since 40 + 618 + 0 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96270 + ... + 96690.

It is an arithmetic number, because the mean of its divisors is an integer number (979251).

Almost surely, 2^40618080 is an apocalyptic number.

40618080 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 40618080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70506072).

40618080 is an abundant number, since it is smaller than the sum of its proper divisors (100394064).

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

40618080 is a wasteful number, since it uses less digits than its factorization.

40618080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 40618080 is about 6373.2315194099. The cubic root of 40618080 is about 343.7476967339.

Adding to 40618080 its reverse (8081604), we get a palindrome (48699684).

The spelling of 40618080 in words is "forty million, six hundred eighteen thousand, eighty".