128044474 has 4 divisors (see below), whose sum is σ = 192066714. Its totient is φ = 64022236.

The previous prime is 128044471. The next prime is 128044529. The reversal of 128044474 is 474440821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116532025 + 11512449 = 10795^2 + 3393^2 .

It is not an unprimeable number, because it can be changed into a prime (128044471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32011117 + ... + 32011120.

Almost surely, 2^128044474 is an apocalyptic number.

128044474 is a deficient number, since it is larger than the sum of its proper divisors (64022240).

128044474 is an equidigital number, since it uses as much as digits as its factorization.

128044474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64022239.

The product of its (nonzero) digits is 28672, while the sum is 34.

The square root of 128044474 is about 11315.6738199720. The cubic root of 128044474 is about 504.0267816666.

It can be divided in two parts, 1280 and 44474, that added together give a palindrome (45754).

The spelling of 128044474 in words is "one hundred twenty-eight million, forty-four thousand, four hundred seventy-four".