40343043 has 16 divisors (see below), whose sum is σ = 58086560. Its totient is φ = 24758784.

The previous prime is 40343033. The next prime is 40343047. The reversal of 40343043 is 34034304.

It is not a de Polignac number, because 40343043 - 2⁸ = 40342787 is a prime.

It is a super-2 number, since 2×40343043² = 3255122236999698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40343047) 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, 15693 + ... + 18081.

It is an arithmetic number, because the mean of its divisors is an integer number (3630410).

Almost surely, 2^40343043 is an apocalyptic number.

40343043 is a deficient number, since it is larger than the sum of its proper divisors (17743517).

40343043 is a wasteful number, since it uses less digits than its factorization.

40343043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 40343043 is about 6351.6173530842. The cubic root of 40343043 is about 342.9700665483.

Adding to 40343043 its reverse (34034304), we get a palindrome (74377347).

The spelling of 40343043 in words is "forty million, three hundred forty-three thousand, forty-three".