128208370 has 16 divisors (see below), whose sum is σ = 236142720. Its totient is φ = 50090544.

The previous prime is 128208347. The next prime is 128208383. The reversal of 128208370 is 73802821.

It is a super-2 number, since 2×128208370² = 32874772276113800, which contains 22 as substring.

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, 148650 + ... + 149509.

It is an arithmetic number, because the mean of its divisors is an integer number (14758920).

Almost surely, 2^128208370 is an apocalyptic number.

128208370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128208370 is a deficient number, since it is larger than the sum of its proper divisors (107934350).

128208370 is a wasteful number, since it uses less digits than its factorization.

128208370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298209.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 128208370 is about 11322.9134943264. The cubic root of 128208370 is about 504.2417401885.

The spelling of 128208370 in words is "one hundred twenty-eight million, two hundred eight thousand, three hundred seventy".