128252466 has 24 divisors (see below), whose sum is σ = 278997264. Its totient is φ = 42579000.

The previous prime is 128252441. The next prime is 128252491. The reversal of 128252466 is 664252821.

It is a happy number.

128252466 is a `hidden beast` number, since 128 + 2 + 524 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (128252441) and next prime (128252491).

It is a self number, because there is not a number n which added to its sum of digits gives 128252466.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9676 + ... + 18711.

It is an arithmetic number, because the mean of its divisors is an integer number (11624886).

Almost surely, 2^128252466 is an apocalyptic number.

128252466 is an abundant number, since it is smaller than the sum of its proper divisors (150744798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128252466 is a wasteful number, since it uses less digits than its factorization.

128252466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28646 (or 28643 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 128252466 is about 11324.8605289425. The cubic root of 128252466 is about 504.2995432141.

The spelling of 128252466 in words is "one hundred twenty-eight million, two hundred fifty-two thousand, four hundred sixty-six".