128770662 has 8 divisors (see below), whose sum is σ = 257541336. Its totient is φ = 42923552.

The previous prime is 128770639. The next prime is 128770667. The reversal of 128770662 is 266077821.

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

128770662 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128770662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128770667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10730883 + ... + 10730894.

It is an arithmetic number, because the mean of its divisors is an integer number (32192667).

Almost surely, 2^128770662 is an apocalyptic number.

128770662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128770662 is a wasteful number, since it uses less digits than its factorization.

128770662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21461782.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 128770662 is about 11347.7161578883. The cubic root of 128770662 is about 504.9778273440.

The spelling of 128770662 in words is "one hundred twenty-eight million, seven hundred seventy thousand, six hundred sixty-two".