4128735 has 32 divisors (see below), whose sum is σ = 7354368. Its totient is φ = 1964160.

The previous prime is 4128713. The next prime is 4128743. The reversal of 4128735 is 5378214.

4128735 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 4128735 - 2¹² = 4124639 is a prime.

4128735 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5704 + ... + 6386.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

Almost surely, 2^4128735 is an apocalyptic number.

4128735 is a deficient number, since it is larger than the sum of its proper divisors (3225633).

4128735 is a wasteful number, since it uses less digits than its factorization.

4128735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its digits is 6720, while the sum is 30.

The square root of 4128735 is about 2031.9288865509. The cubic root of 4128735 is about 160.4251065067.

The spelling of 4128735 in words is "four million, one hundred twenty-eight thousand, seven hundred thirty-five".