76320220 has 12 divisors (see below), whose sum is σ = 160272504. Its totient is φ = 30528080.

The previous prime is 76320197. The next prime is 76320239. The reversal of 76320220 is 2202367.

It is a super-3 number, since 3×76320220³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76320191 and 76320200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907986 + ... + 1908025.

It is an arithmetic number, because the mean of its divisors is an integer number (13356042).

Almost surely, 2^76320220 is an apocalyptic number.

It is an amenable number.

76320220 is an abundant number, since it is smaller than the sum of its proper divisors (83952284).

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

76320220 is a wasteful number, since it uses less digits than its factorization.

76320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816020 (or 3816018 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 76320220 is about 8736.1444585126. The cubic root of 76320220 is about 424.1764351155.

Adding to 76320220 its reverse (2202367), we get a palindrome (78522587).

The spelling of 76320220 in words is "seventy-six million, three hundred twenty thousand, two hundred twenty".