71280226 has 8 divisors (see below), whose sum is σ = 107576784. Its totient is φ = 35421300.

The previous prime is 71280221. The next prime is 71280227. The reversal of 71280226 is 62208217.

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

It is a super-2 number, since 2×71280226² = 10161741237222152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71280194 and 71280203.

It is not an unprimeable number, because it can be changed into a prime (71280221) 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, 109000 + ... + 109651.

It is an arithmetic number, because the mean of its divisors is an integer number (13447098).

Almost surely, 2^71280226 is an apocalyptic number.

71280226 is a deficient number, since it is larger than the sum of its proper divisors (36296558).

71280226 is a wasteful number, since it uses less digits than its factorization.

71280226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218816.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 71280226 is about 8442.7617519388. The cubic root of 71280226 is about 414.6258320033.

The spelling of 71280226 in words is "seventy-one million, two hundred eighty thousand, two hundred twenty-six".