40052943 has 18 divisors (see below), whose sum is σ = 67300584. Its totient is φ = 22887144.

The previous prime is 40052939. The next prime is 40052951. The reversal of 40052943 is 34925004.

40052943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40052943 - 2² = 40052939 is a prime.

It is a super-2 number, since 2×40052943² = 3208476485922498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40052953) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 44971 + ... + 45852.

Almost surely, 2^40052943 is an apocalyptic number.

40052943 is a deficient number, since it is larger than the sum of its proper divisors (27247641).

40052943 is a wasteful number, since it uses less digits than its factorization.

40052943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90843 (or 90833 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40052943 is about 6328.7394479470. The cubic root of 40052943 is about 342.1460082424.

Adding to 40052943 its reverse (34925004), we get a palindrome (74977947).

The spelling of 40052943 in words is "forty million, fifty-two thousand, nine hundred forty-three".