40040023204 has 6 divisors (see below), whose sum is σ = 70070040614. Its totient is φ = 20020011600.

The previous prime is 40040023201. The next prime is 40040023207. The reversal of 40040023204 is 40232004004.

It is an interprime number because it is at equal distance from previous prime (40040023201) and next prime (40040023207).

It can be written as a sum of positive squares in only one way, i.e., 32746521600 + 7293501604 = 180960^2 + 85402^2 .

It is not an unprimeable number, because it can be changed into a prime (40040023201) 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 as a sum of consecutive naturals, namely, 5005002897 + ... + 5005002904.

Almost surely, 2^40040023204 is an apocalyptic number.

It is an amenable number.

40040023204 is a deficient number, since it is larger than the sum of its proper divisors (30030017410).

40040023204 is a wasteful number, since it uses less digits than its factorization.

40040023204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010005805 (or 10010005803 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 40040023204 its reverse (40232004004), we get a palindrome (80272027208).

The spelling of 40040023204 in words is "forty billion, forty million, twenty-three thousand, two hundred four".