4021254 has 12 divisors (see below), whose sum is σ = 8712756. Its totient is φ = 1340412.

The previous prime is 4021249. The next prime is 4021261. The reversal of 4021254 is 4521204.

4021254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 223403 = 4021254 / (4 + 0 + 2 + 1 + 2 + 5 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111684 + ... + 111719.

It is an arithmetic number, because the mean of its divisors is an integer number (726063).

Almost surely, 2^4021254 is an apocalyptic number.

4021254 is an abundant number, since it is smaller than the sum of its proper divisors (4691502).

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

4021254 is a wasteful number, since it uses less digits than its factorization.

4021254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223411 (or 223408 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4021254 is about 2005.3064603696. The cubic root of 4021254 is about 159.0207638719.

Adding to 4021254 its reverse (4521204), we get a palindrome (8542458).

The spelling of 4021254 in words is "four million, twenty-one thousand, two hundred fifty-four".