4020490 has 8 divisors (see below), whose sum is σ = 7236900. Its totient is φ = 1608192.

The previous prime is 4020463. The next prime is 4020493. The reversal of 4020490 is 940204.

4020490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3767481 + 253009 = 1941^2 + 503^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4020493) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 201015 + ... + 201034.

Almost surely, 2^4020490 is an apocalyptic number.

4020490 is a deficient number, since it is larger than the sum of its proper divisors (3216410).

4020490 is a wasteful number, since it uses less digits than its factorization.

4020490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402056.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4020490 is about 2005.1159567466. The cubic root of 4020490 is about 159.0106924234.

Adding to 4020490 its reverse (940204), we get a palindrome (4960694).

The spelling of 4020490 in words is "four million, twenty thousand, four hundred ninety".