70808080 has 40 divisors (see below), whose sum is σ = 188148672. Its totient is φ = 24276864.

The previous prime is 70808069. The next prime is 70808113. The reversal of 70808080 is 8080807.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62662 + ... + 63781.

Almost surely, 2^70808080 is an apocalyptic number.

70808080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70808080 is an abundant number, since it is smaller than the sum of its proper divisors (117340592).

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

70808080 is a wasteful number, since it uses less digits than its factorization.

70808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126463 (or 126457 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 70808080 is about 8414.7537100025. The cubic root of 70808080 is about 413.7083369725.

Adding to 70808080 its reverse (8080807), we get a palindrome (78888887).

The spelling of 70808080 in words is "seventy million, eight hundred eight thousand, eighty".