4028998 has 4 divisors (see below), whose sum is σ = 6043500. Its totient is φ = 2014498.

The previous prime is 4028993. The next prime is 4029001. The reversal of 4028998 is 8998204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4028998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007248 + ... + 1007251.

It is an arithmetic number, because the mean of its divisors is an integer number (1510875).

Almost surely, 2^4028998 is an apocalyptic number.

4028998 is a deficient number, since it is larger than the sum of its proper divisors (2014502).

4028998 is a wasteful number, since it uses less digits than its factorization.

4028998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014501.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 4028998 is about 2007.2364085977. The cubic root of 4028998 is about 159.1227774180.

The spelling of 4028998 in words is "four million, twenty-eight thousand, nine hundred ninety-eight".