4002020210 has 8 divisors (see below), whose sum is σ = 7203636396. Its totient is φ = 1600808080.

The previous prime is 4002020207. The next prime is 4002020251. The reversal of 4002020210 is 120202004.

It can be written as a sum of positive squares in 2 ways, for example, as 3623678809 + 378341401 = 60197^2 + 19451^2 .

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

It is a super-2 number, since 2×4002020210² = 32032331522496888200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4002020191 and 4002020200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200101001 + ... + 200101020.

Almost surely, 2^4002020210 is an apocalyptic number.

4002020210 is a deficient number, since it is larger than the sum of its proper divisors (3201616186).

4002020210 is a wasteful number, since it uses less digits than its factorization.

4002020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400202028.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 4002020210 is about 63261.5223496874. The cubic root of 4002020210 is about 1587.6682472806.

Adding to 4002020210 its reverse (120202004), we get a palindrome (4122222214).

The spelling of 4002020210 in words is "four billion, two million, twenty thousand, two hundred ten".