128366364 has 24 divisors (see below), whose sum is σ = 342310528. Its totient is φ = 36676080.

The previous prime is 128366351. The next prime is 128366369. The reversal of 128366364 is 463663821.

It is a super-3 number, since 3×128366364³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128366369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764002 + ... + 764169.

Almost surely, 2^128366364 is an apocalyptic number.

128366364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128366364 is an abundant number, since it is smaller than the sum of its proper divisors (213944164).

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

128366364 is a wasteful number, since it uses less digits than its factorization.

128366364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528185 (or 1528183 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 128366364 is about 11329.8880841781. Note that the first 3 decimals coincide. The cubic root of 128366364 is about 504.4487845665.

The spelling of 128366364 in words is "one hundred twenty-eight million, three hundred sixty-six thousand, three hundred sixty-four".