128308414 has 8 divisors (see below), whose sum is σ = 207267480. Its totient is φ = 59219256.

The previous prime is 128308409. The next prime is 128308423. The reversal of 128308414 is 414803821.

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, 2467444 + ... + 2467495.

It is an arithmetic number, because the mean of its divisors is an integer number (25908435).

Almost surely, 2^128308414 is an apocalyptic number.

128308414 is a deficient number, since it is larger than the sum of its proper divisors (78959066).

128308414 is a wasteful number, since it uses less digits than its factorization.

128308414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934954.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 128308414 is about 11327.3304004077. The cubic root of 128308414 is about 504.3728633095.

The spelling of 128308414 in words is "one hundred twenty-eight million, three hundred eight thousand, four hundred fourteen".