8456040904 has 8 divisors (see below), whose sum is σ = 15855076710. Its totient is φ = 4228020448.

The previous prime is 8456040899. The next prime is 8456040911. The reversal of 8456040904 is 4090406548.

It can be written as a sum of positive squares in only one way, i.e., 5539824900 + 2916216004 = 74430^2 + 54002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8456040904² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528502549 + ... + 528502564.

Almost surely, 2^8456040904 is an apocalyptic number.

It is an amenable number.

8456040904 is a deficient number, since it is larger than the sum of its proper divisors (7399035806).

8456040904 is a wasteful number, since it uses less digits than its factorization.

8456040904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057005119 (or 1057005115 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 8456040904 is about 91956.7338697934. The cubic root of 8456040904 is about 2037.3033142921.

The spelling of 8456040904 in words is "eight billion, four hundred fifty-six million, forty thousand, nine hundred four".