4020130 has 16 divisors (see below), whose sum is σ = 7319160. Its totient is φ = 1589632.

The previous prime is 4020119. The next prime is 4020139. The reversal of 4020130 is 310204.

It can be written as a sum of positive squares in 4 ways, for example, as 1207801 + 2812329 = 1099^2 + 1677^2 .

It is a super-3 number, since 3×4020130³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (4020139) 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 in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 3148.

Almost surely, 2^4020130 is an apocalyptic number.

4020130 is a deficient number, since it is larger than the sum of its proper divisors (3299030).

4020130 is a wasteful number, since it uses less digits than its factorization.

4020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 4020130 is about 2005.0261843677. The cubic root of 4020130 is about 159.0059462724.

Adding to 4020130 its reverse (310204), we get a palindrome (4330334).

The spelling of 4020130 in words is "four million, twenty thousand, one hundred thirty".