128480469 has 32 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 74683392.

The previous prime is 128480459. The next prime is 128480491. The reversal of 128480469 is 964084821.

It is not a de Polignac number, because 128480469 - 2¹¹ = 128478421 is a prime.

It is a super-2 number, since 2×128480469² = 33014461828919922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128480469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128480419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51949 + ... + 54365.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^128480469 is an apocalyptic number.

It is an amenable number.

128480469 is a deficient number, since it is larger than the sum of its proper divisors (66507051).

128480469 is a wasteful number, since it uses less digits than its factorization.

128480469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 128480469 is about 11334.9225405382. The cubic root of 128480469 is about 504.5982086578.

The spelling of 128480469 in words is "one hundred twenty-eight million, four hundred eighty thousand, four hundred sixty-nine".