4027128 has 32 divisors (see below), whose sum is σ = 11506560. Its totient is φ = 1150560.

The previous prime is 4027123. The next prime is 4027129. The reversal of 4027128 is 8217204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 4027098 and 4027107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4027123) 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, 11818 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (359580).

Almost surely, 2^4027128 is an apocalyptic number.

It is an amenable number.

4027128 is an abundant number, since it is smaller than the sum of its proper divisors (7479432).

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

4027128 is a wasteful number, since it uses less digits than its factorization.

4027128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23987 (or 23983 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 4027128 is about 2006.7705399472. The cubic root of 4027128 is about 159.0981554448.

The spelling of 4027128 in words is "four million, twenty-seven thousand, one hundred twenty-eight".