8040404080 has 40 divisors (see below), whose sum is σ = 18697669344. Its totient is φ = 3215520000.

The previous prime is 8040404023. The next prime is 8040404089. The reversal of 8040404080 is 804040408.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040404089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787005 + ... + 797155.

Almost surely, 2^8040404080 is an apocalyptic number.

8040404080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8040404080 is an abundant number, since it is smaller than the sum of its proper divisors (10657265264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8040404080 is a wasteful number, since it uses less digits than its factorization.

8040404080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20065 (or 20059 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 8040404080 is about 89668.3003072992. The cubic root of 8040404080 is about 2003.3613541509.

Adding to 8040404080 its reverse (804040408), we get a palindrome (8844444488).

The spelling of 8040404080 in words is "eight billion, forty million, four hundred four thousand, eighty".