128226466 has 8 divisors (see below), whose sum is σ = 192407040. Its totient is φ = 64090788.

The previous prime is 128226463. The next prime is 128226467. The reversal of 128226466 is 664622821.

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 (128226463) 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, 2826 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (24050880).

Almost surely, 2^128226466 is an apocalyptic number.

128226466 is a deficient number, since it is larger than the sum of its proper divisors (64180574).

128226466 is a wasteful number, since it uses less digits than its factorization.

128226466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22448.

The product of its digits is 55296, while the sum is 37.

The square root of 128226466 is about 11323.7125537520. The cubic root of 128226466 is about 504.2654628447.

The spelling of 128226466 in words is "one hundred twenty-eight million, two hundred twenty-six thousand, four hundred sixty-six".