172226416 has 20 divisors (see below), whose sum is σ = 342708472. Its totient is φ = 83785536.

The previous prime is 172226401. The next prime is 172226423. The reversal of 172226416 is 614622271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144870 + ... + 146053.

Almost surely, 2^172226416 is an apocalyptic number.

172226416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172226416 is a deficient number, since it is larger than the sum of its proper divisors (170482056).

172226416 is a wasteful number, since it uses less digits than its factorization.

172226416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290968 (or 290962 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 172226416 is about 13123.5062388068. The cubic root of 172226416 is about 556.3736942273.

Adding to 172226416 its reverse (614622271), we get a palindrome (786848687).

The spelling of 172226416 in words is "one hundred seventy-two million, two hundred twenty-six thousand, four hundred sixteen".