128467406 has 16 divisors (see below), whose sum is σ = 195663600. Its totient is φ = 63252288.

The previous prime is 128467399. The next prime is 128467411. The reversal of 128467406 is 604764821.

It is a self number, because there is not a number n which added to its sum of digits gives 128467406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46541 + ... + 49223.

It is an arithmetic number, because the mean of its divisors is an integer number (12228975).

Almost surely, 2^128467406 is an apocalyptic number.

128467406 is a deficient number, since it is larger than the sum of its proper divisors (67196194).

128467406 is a wasteful number, since it uses less digits than its factorization.

128467406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 128467406 is about 11334.3462978683. The cubic root of 128467406 is about 504.5811067334.

The spelling of 128467406 in words is "one hundred twenty-eight million, four hundred sixty-seven thousand, four hundred six".