80070320 has 40 divisors (see below), whose sum is σ = 203089680. Its totient is φ = 29116160.

The previous prime is 80070311. The next prime is 80070329. The reversal of 80070320 is 2307008.

It is an interprime number because it is at equal distance from previous prime (80070311) and next prime (80070329).

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

It is a super-2 number, since 2×80070320² = 12822512289804800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 80070292 and 80070301.

It is not an unprimeable number, because it can be changed into a prime (80070329) 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, 44615 + ... + 46374.

It is an arithmetic number, because the mean of its divisors is an integer number (5077242).

Almost surely, 2^80070320 is an apocalyptic number.

80070320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80070320 is an abundant number, since it is smaller than the sum of its proper divisors (123019360).

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

80070320 is a wasteful number, since it uses less digits than its factorization.

80070320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91013 (or 91007 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 80070320 is about 8948.2020540442. The cubic root of 80070320 is about 431.0131509061.

Adding to 80070320 its reverse (2307008), we get a palindrome (82377328).

The spelling of 80070320 in words is "eighty million, seventy thousand, three hundred twenty".