40043133 has 16 divisors (see below), whose sum is σ = 63887040. Its totient is φ = 24641712.

The previous prime is 40043119. The next prime is 40043141. The reversal of 40043133 is 33134004.

It is not a de Polignac number, because 40043133 - 2⁴ = 40043117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56691 + ... + 57392.

It is an arithmetic number, because the mean of its divisors is an integer number (3992940).

Almost surely, 2^40043133 is an apocalyptic number.

It is an amenable number.

40043133 is a deficient number, since it is larger than the sum of its proper divisors (23843907).

40043133 is a wasteful number, since it uses less digits than its factorization.

40043133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114105 (or 114099 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40043133 is about 6327.9643646279. The cubic root of 40043133 is about 342.1180724974.

Adding to 40043133 its reverse (33134004), we get a palindrome (73177137).

The spelling of 40043133 in words is "forty million, forty-three thousand, one hundred thirty-three".