40181026 has 8 divisors (see below), whose sum is σ = 60298524. Its totient is φ = 20081520.

The previous prime is 40181017. The next prime is 40181041. The reversal of 40181026 is 62018104.

It can be written as a sum of positive squares in 2 ways, for example, as 34821801 + 5359225 = 5901^2 + 2315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40181026² = 3229029700825352, which contains 22 as substring.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 40180988 and 40181006.

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 3 ways as a sum of consecutive naturals, for example, 5836 + ... + 10696.

Almost surely, 2^40181026 is an apocalyptic number.

40181026 is a deficient number, since it is larger than the sum of its proper divisors (20117498).

40181026 is a wasteful number, since it uses less digits than its factorization.

40181026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8996.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 40181026 is about 6338.8505267122. The cubic root of 40181026 is about 342.5103298428.

The spelling of 40181026 in words is "forty million, one hundred eighty-one thousand, twenty-six".