40321004 has 6 divisors (see below), whose sum is σ = 70561764. Its totient is φ = 20160500.

The previous prime is 40320997. The next prime is 40321007. The reversal of 40321004 is 40012304.

It is a self number, because there is not a number n which added to its sum of digits gives 40321004.

It is not an unprimeable number, because it can be changed into a prime (40321007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5040122 + ... + 5040129.

It is an arithmetic number, because the mean of its divisors is an integer number (11760294).

Almost surely, 2^40321004 is an apocalyptic number.

It is an amenable number.

40321004 is a deficient number, since it is larger than the sum of its proper divisors (30240760).

40321004 is a wasteful number, since it uses less digits than its factorization.

40321004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080255 (or 10080253 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40321004 is about 6349.8822036318. The cubic root of 40321004 is about 342.9076014691.

Adding to 40321004 its reverse (40012304), we get a palindrome (80333308).

The spelling of 40321004 in words is "forty million, three hundred twenty-one thousand, four".