4207128 has 32 divisors (see below), whose sum is σ = 10570560. Its totient is φ = 1395360.

The previous prime is 4207097. The next prime is 4207139. The reversal of 4207128 is 8217024.

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 = 4207098 and 4207107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7083 + ... + 7653.

It is an arithmetic number, because the mean of its divisors is an integer number (330330).

Almost surely, 2^4207128 is an apocalyptic number.

It is an amenable number.

4207128 is an abundant number, since it is smaller than the sum of its proper divisors (6363432).

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

4207128 is a wasteful number, since it uses less digits than its factorization.

4207128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 883 counting only the distinct ones).

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

The square root of 4207128 is about 2051.1284698916. The cubic root of 4207128 is about 161.4340869795.

Adding to 4207128 its product of nonzero digits (896), we get a palindrome (4208024).

The spelling of 4207128 in words is "four million, two hundred seven thousand, one hundred twenty-eight".