4128894 has 80 divisors (see below), whose sum is σ = 11569536. Its totient is φ = 1069200.

The previous prime is 4128889. The next prime is 4128899. The reversal of 4128894 is 4988214.

It is an interprime number because it is at equal distance from previous prime (4128889) and next prime (4128899).

It is a Curzon number.

It is a congruent number.

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 in 39 ways as a sum of consecutive naturals, for example, 12309 + ... + 12639.

Almost surely, 2^4128894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4128894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5784768).

4128894 is an abundant number, since it is smaller than the sum of its proper divisors (7440642).

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

4128894 is a wasteful number, since it uses less digits than its factorization.

4128894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 354 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4128894 is about 2031.9680115592. The cubic root of 4128894 is about 160.4271658352.

The spelling of 4128894 in words is "four million, one hundred twenty-eight thousand, eight hundred ninety-four".