40181027 has 4 divisors (see below), whose sum is σ = 40356720. Its totient is φ = 40005336.

The previous prime is 40181017. The next prime is 40181041. The reversal of 40181027 is 72018104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40181027 - 2¹⁴ = 40164643 is a prime.

It is a super-2 number, since 2×40181027² = 3229029861549458, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 40180993 and 40181011.

It is not an unprimeable number, because it can be changed into a prime (40181017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87503 + ... + 87960.

It is an arithmetic number, because the mean of its divisors is an integer number (10089180).

Almost surely, 2^40181027 is an apocalyptic number.

40181027 is a deficient number, since it is larger than the sum of its proper divisors (175693).

40181027 is a wasteful number, since it uses less digits than its factorization.

40181027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175692.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 40181027 is about 6338.8506055909. The cubic root of 40181027 is about 342.5103326842.

The spelling of 40181027 in words is "forty million, one hundred eighty-one thousand, twenty-seven".