128416406 has 8 divisors (see below), whose sum is σ = 200999664. Its totient is φ = 61416520.

The previous prime is 128416363. The next prime is 128416411. The reversal of 128416406 is 604614821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395785 + ... + 1395876.

It is an arithmetic number, because the mean of its divisors is an integer number (25124958).

Almost surely, 2^128416406 is an apocalyptic number.

128416406 is a deficient number, since it is larger than the sum of its proper divisors (72583258).

128416406 is a wasteful number, since it uses less digits than its factorization.

128416406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791686.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 128416406 is about 11332.0962756235. The cubic root of 128416406 is about 504.5143270386.

The spelling of 128416406 in words is "one hundred twenty-eight million, four hundred sixteen thousand, four hundred six".