128417682 has 8 divisors (see below), whose sum is σ = 256835376. Its totient is φ = 42805892.

The previous prime is 128417659. The next prime is 128417687. The reversal of 128417682 is 286714821.

It is a happy number.

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

128417682 is an admirable number.

It is a super-2 number, since 2×128417682² = 32982202100506248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128417682.

It is not an unprimeable number, because it can be changed into a prime (128417687) 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, 10701468 + ... + 10701479.

It is an arithmetic number, because the mean of its divisors is an integer number (32104422).

Almost surely, 2^128417682 is an apocalyptic number.

128417682 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.

128417682 is a wasteful number, since it uses less digits than its factorization.

128417682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21402952.

The product of its digits is 43008, while the sum is 39.

The square root of 128417682 is about 11332.1525757466. The cubic root of 128417682 is about 504.5159980560.

The spelling of 128417682 in words is "one hundred twenty-eight million, four hundred seventeen thousand, six hundred eighty-two".