128522370 has 32 divisors (see below), whose sum is σ = 311455872. Its totient is φ = 33939072.

The previous prime is 128522369. The next prime is 128522371. The reversal of 128522370 is 73225821.

It is an interprime number because it is at equal distance from previous prime (128522369) and next prime (128522371).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (128522371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17707 + ... + 23886.

It is an arithmetic number, because the mean of its divisors is an integer number (9732996).

Almost surely, 2^128522370 is an apocalyptic number.

128522370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128522370 is an abundant number, since it is smaller than the sum of its proper divisors (182933502).

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

128522370 is a wasteful number, since it uses less digits than its factorization.

128522370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41706.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 128522370 is about 11336.7707042173. The cubic root of 128522370 is about 504.6530571280.

The spelling of 128522370 in words is "one hundred twenty-eight million, five hundred twenty-two thousand, three hundred seventy".