40143019 has 8 divisors (see below), whose sum is σ = 45934560. Its totient is φ = 34365696.

The previous prime is 40143017. The next prime is 40143041. The reversal of 40143019 is 91034104.

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

It is a cyclic number.

It is not a de Polignac number, because 40143019 - 2¹ = 40143017 is a prime.

It is a super-2 number, since 2×40143019² = 3222923948868722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40143011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3417 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (5741820).

Almost surely, 2^40143019 is an apocalyptic number.

40143019 is a deficient number, since it is larger than the sum of its proper divisors (5791541).

40143019 is an equidigital number, since it uses as much as digits as its factorization.

40143019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 40143019 is about 6335.8518764251. The cubic root of 40143019 is about 342.4023029285.

The spelling of 40143019 in words is "forty million, one hundred forty-three thousand, nineteen".