40143233 has 8 divisors (see below), whose sum is σ = 44626176. Its totient is φ = 35859600.

The previous prime is 40143227. The next prime is 40143241. The reversal of 40143233 is 33234104.

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 40143233 - 2¹⁸ = 39881089 is a prime.

It is a super-2 number, since 2×40143233² = 3222958311384578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40143253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49403 + ... + 50208.

It is an arithmetic number, because the mean of its divisors is an integer number (5578272).

Almost surely, 2^40143233 is an apocalyptic number.

It is an amenable number.

40143233 is a deficient number, since it is larger than the sum of its proper divisors (4482943).

40143233 is a wasteful number, since it uses less digits than its factorization.

40143233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99655.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40143233 is about 6335.8687644237. The cubic root of 40143233 is about 342.4029113694.

Adding to 40143233 its reverse (33234104), we get a palindrome (73377337).

It can be divided in two parts, 401 and 43233, that added together give a palindrome (43634).

The spelling of 40143233 in words is "forty million, one hundred forty-three thousand, two hundred thirty-three".