4028479 has 8 divisors (see below), whose sum is σ = 4958240. Its totient is φ = 3187296.

The previous prime is 4028471. The next prime is 4028491. The reversal of 4028479 is 9748204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4028479 - 2³ = 4028471 is a prime.

It is an Ulam number.

4028479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028471) 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, 22044 + ... + 22225.

It is an arithmetic number, because the mean of its divisors is an integer number (619780).

Almost surely, 2^4028479 is an apocalyptic number.

4028479 is a deficient number, since it is larger than the sum of its proper divisors (929761).

4028479 is a wasteful number, since it uses less digits than its factorization.

4028479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44289.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4028479 is about 2007.1071222035. The cubic root of 4028479 is about 159.1159445969.

The spelling of 4028479 in words is "four million, twenty-eight thousand, four hundred seventy-nine".