40543004 has 12 divisors (see below), whose sum is σ = 71248800. Its totient is φ = 20186208.

The previous prime is 40543001. The next prime is 40543007. The reversal of 40543004 is 40034504.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40543001) and next prime (40543007).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40543001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20249 + ... + 22160.

It is an arithmetic number, because the mean of its divisors is an integer number (5937400).

Almost surely, 2^40543004 is an apocalyptic number.

It is an amenable number.

40543004 is a deficient number, since it is larger than the sum of its proper divisors (30705796).

40543004 is a wasteful number, since it uses less digits than its factorization.

40543004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42652 (or 42650 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40543004 is about 6367.3388475877. The cubic root of 40543004 is about 343.5357786374.

Adding to 40543004 its reverse (40034504), we get a palindrome (80577508).

The spelling of 40543004 in words is "forty million, five hundred forty-three thousand, four".