4021402 has 16 divisors (see below), whose sum is σ = 7520832. Its totient is φ = 1566720.

The previous prime is 4021399. The next prime is 4021411. The reversal of 4021402 is 2041204.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 12903 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (470052).

Almost surely, 2^4021402 is an apocalyptic number.

4021402 is a deficient number, since it is larger than the sum of its proper divisors (3499430).

4021402 is a wasteful number, since it uses less digits than its factorization.

4021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26133.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4021402 is about 2005.3433621203. The cubic root of 4021402 is about 159.0227147380.

Adding to 4021402 its reverse (2041204), we get a palindrome (6062606).

The spelling of 4021402 in words is "four million, twenty-one thousand, four hundred two".