72280210 has 8 divisors (see below), whose sum is σ = 130104396. Its totient is φ = 28912080.

The previous prime is 72280207. The next prime is 72280211. The reversal of 72280210 is 1208227.

It can be written as a sum of positive squares in 2 ways, for example, as 68442529 + 3837681 = 8273^2 + 1959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72280211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3614001 + ... + 3614020.

Almost surely, 2^72280210 is an apocalyptic number.

72280210 is a deficient number, since it is larger than the sum of its proper divisors (57824186).

72280210 is a wasteful number, since it uses less digits than its factorization.

72280210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7228028.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 72280210 is about 8501.7768731013. The cubic root of 72280210 is about 416.5557514552. Note that the first 3 decimals are identical.

Adding to 72280210 its reverse (1208227), we get a palindrome (73488437).

The spelling of 72280210 in words is "seventy-two million, two hundred eighty thousand, two hundred ten".