40030143 has 16 divisors (see below), whose sum is σ = 56643840. Its totient is φ = 25091264.

The previous prime is 40030127. The next prime is 40030157. The reversal of 40030143 is 34103004.

It is a cyclic number.

It is not a de Polignac number, because 40030143 - 2⁴ = 40030127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846 + ... + 8987.

It is an arithmetic number, because the mean of its divisors is an integer number (3540240).

Almost surely, 2^40030143 is an apocalyptic number.

40030143 is a deficient number, since it is larger than the sum of its proper divisors (16613697).

40030143 is a wasteful number, since it uses less digits than its factorization.

40030143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9918.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40030143 is about 6326.9378849488. The cubic root of 40030143 is about 342.0810741070.

Adding to 40030143 its reverse (34103004), we get a palindrome (74133147).

The spelling of 40030143 in words is "forty million, thirty thousand, one hundred forty-three".