4028542 has 16 divisors (see below), whose sum is σ = 7206912. Its totient is φ = 1651320.

The previous prime is 4028539. The next prime is 4028561. The reversal of 4028542 is 2458204.

It is a happy number.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 4028542 parts by 2838 straight cuts.

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, 5934 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (450432).

Almost surely, 2^4028542 is an apocalyptic number.

4028542 is a deficient number, since it is larger than the sum of its proper divisors (3178370).

4028542 is a wasteful number, since it uses less digits than its factorization.

4028542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12543.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4028542 is about 2007.1228163717. The cubic root of 4028542 is about 159.1167740457.

It can be divided in two parts, 40 and 28542, that added together give a palindrome (28582).

The spelling of 4028542 in words is "four million, twenty-eight thousand, five hundred forty-two".