72276226 has 8 divisors (see below), whose sum is σ = 118270224. Its totient is φ = 32852820.

The previous prime is 72276223. The next prime is 72276241. The reversal of 72276226 is 62267227.

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

It is a junction number, because it is equal to n+sod(n) for n = 72276191 and 72276200.

It is not an unprimeable number, because it can be changed into a prime (72276223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642620 + ... + 1642663.

It is an arithmetic number, because the mean of its divisors is an integer number (14783778).

Almost surely, 2^72276226 is an apocalyptic number.

72276226 is a deficient number, since it is larger than the sum of its proper divisors (45993998).

72276226 is a wasteful number, since it uses less digits than its factorization.

72276226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285296.

The product of its digits is 28224, while the sum is 34.

The square root of 72276226 is about 8501.5425659112. The cubic root of 72276226 is about 416.5480979605.

The spelling of 72276226 in words is "seventy-two million, two hundred seventy-six thousand, two hundred twenty-six".