40072804 has 6 divisors (see below), whose sum is σ = 70127414. Its totient is φ = 20036400.

The previous prime is 40072793. The next prime is 40072817. The reversal of 40072804 is 40827004.

40072804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 11235904 = 5370^2 + 3352^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5009097 + ... + 5009104.

Almost surely, 2^40072804 is an apocalyptic number.

It is an amenable number.

40072804 is a deficient number, since it is larger than the sum of its proper divisors (30054610).

40072804 is a wasteful number, since it uses less digits than its factorization.

40072804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018205 (or 10018203 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 40072804 is about 6330.3083653168. The cubic root of 40072804 is about 342.2025520606.

Adding to 40072804 its reverse (40827004), we get a palindrome (80899808).

The spelling of 40072804 in words is "forty million, seventy-two thousand, eight hundred four".