80007040 has 64 divisors (see below), whose sum is σ = 192780000. Its totient is φ = 31750144.

The previous prime is 80007023. The next prime is 80007073. The reversal of 80007040 is 4070008.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×80007040² = 12802252899123200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80006999 and 80007017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94941 + ... + 95779.

Almost surely, 2^80007040 is an apocalyptic number.

80007040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80007040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96390000).

80007040 is an abundant number, since it is smaller than the sum of its proper divisors (112772960).

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

80007040 is a wasteful number, since it uses less digits than its factorization.

80007040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 80007040 is about 8944.6654493055. The cubic root of 80007040 is about 430.8995769858.

Adding to 80007040 its reverse (4070008), we get a palindrome (84077048).

The spelling of 80007040 in words is "eighty million, seven thousand, forty".