4128898 has 4 divisors (see below), whose sum is σ = 6193350. Its totient is φ = 2064448.

The previous prime is 4128889. The next prime is 4128899. The reversal of 4128898 is 8988214.

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., 4052169 + 76729 = 2013^2 + 277^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4128898.

It is not an unprimeable number, because it can be changed into a prime (4128899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032223 + ... + 1032226.

Almost surely, 2^4128898 is an apocalyptic number.

4128898 is a deficient number, since it is larger than the sum of its proper divisors (2064452).

4128898 is a wasteful number, since it uses less digits than its factorization.

4128898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064451.

The product of its digits is 36864, while the sum is 40.

The square root of 4128898 is about 2031.9689958265. The cubic root of 4128898 is about 160.4272176415.

The spelling of 4128898 in words is "four million, one hundred twenty-eight thousand, eight hundred ninety-eight".