128719416 has 32 divisors (see below), whose sum is σ = 367770240. Its totient is φ = 36776928.

The previous prime is 128719387. The next prime is 128719441. The reversal of 128719416 is 614917821.

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, 382926 + ... + 383261.

It is an arithmetic number, because the mean of its divisors is an integer number (11492820).

Almost surely, 2^128719416 is an apocalyptic number.

It is an amenable number.

128719416 is an abundant number, since it is smaller than the sum of its proper divisors (239050824).

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

128719416 is a wasteful number, since it uses less digits than its factorization.

128719416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766203 (or 766199 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 128719416 is about 11345.4579458037. The cubic root of 128719416 is about 504.9108309051.

It can be divided in two parts, 1287194 and 16, that added together give a triangular number (1287210 = T₁₆₀₄).

The spelling of 128719416 in words is "one hundred twenty-eight million, seven hundred nineteen thousand, four hundred sixteen".