40143230 has 16 divisors (see below), whose sum is σ = 72529344. Its totient is φ = 15996960.

The previous prime is 40143227. The next prime is 40143241. The reversal of 40143230 is 3234104.

40143230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40143230² = 3222957829665800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143199 and 40143208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 10116.

It is an arithmetic number, because the mean of its divisors is an integer number (4533084).

Almost surely, 2^40143230 is an apocalyptic number.

40143230 is a deficient number, since it is larger than the sum of its proper divisors (32386114).

40143230 is a wasteful number, since it uses less digits than its factorization.

40143230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15091.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40143230 is about 6335.8685276764. The cubic root of 40143230 is about 342.4029028399.

Adding to 40143230 its reverse (3234104), we get a palindrome (43377334).

The spelling of 40143230 in words is "forty million, one hundred forty-three thousand, two hundred thirty".