128046220 has 12 divisors (see below), whose sum is σ = 268897104. Its totient is φ = 51218480.

The previous prime is 128046199. The next prime is 128046229. The reversal of 128046220 is 22640821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128046229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3201136 + ... + 3201175.

It is an arithmetic number, because the mean of its divisors is an integer number (22408092).

Almost surely, 2^128046220 is an apocalyptic number.

128046220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128046220 is an abundant number, since it is smaller than the sum of its proper divisors (140850884).

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

128046220 is a wasteful number, since it uses less digits than its factorization.

128046220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402320 (or 6402318 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 128046220 is about 11315.7509693347. The cubic root of 128046220 is about 504.0290726070.

The spelling of 128046220 in words is "one hundred twenty-eight million, forty-six thousand, two hundred twenty".