128619496 has 32 divisors (see below), whose sum is σ = 259776000. Its totient is φ = 59526720.

The previous prime is 128619479. The next prime is 128619509. The reversal of 128619496 is 694916821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5571 + ... + 16978.

It is an arithmetic number, because the mean of its divisors is an integer number (8118000).

Almost surely, 2^128619496 is an apocalyptic number.

It is an amenable number.

128619496 is an abundant number, since it is smaller than the sum of its proper divisors (131156504).

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

128619496 is a wasteful number, since it uses less digits than its factorization.

128619496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22609 (or 22605 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 128619496 is about 11341.0535665784. The cubic root of 128619496 is about 504.7801493764.

The spelling of 128619496 in words is "one hundred twenty-eight million, six hundred nineteen thousand, four hundred ninety-six".