40006704004 has 6 divisors (see below), whose sum is σ = 70011732014. Its totient is φ = 20003352000.

The previous prime is 40006703987. The next prime is 40006704007. The reversal of 40006704004 is 40040760004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36507744900 + 3498959104 = 191070^2 + 59152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40006704004.

It is not an unprimeable number, because it can be changed into a prime (40006704007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000837997 + ... + 5000838004.

Almost surely, 2^40006704004 is an apocalyptic number.

It is an amenable number.

40006704004 is a deficient number, since it is larger than the sum of its proper divisors (30005028010).

40006704004 is a wasteful number, since it uses less digits than its factorization.

40006704004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001676005 (or 10001676003 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The spelling of 40006704004 in words is "forty billion, six million, seven hundred four thousand, four".