2042420210 has 8 divisors (see below), whose sum is σ = 3676356396. Its totient is φ = 816968080.

The previous prime is 2042420209. The next prime is 2042420221. The reversal of 2042420210 is 120242402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2038432201 + 3988009 = 45149^2 + 1997^2 .

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

It is a Curzon number.

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, 102121001 + ... + 102121020.

Almost surely, 2^2042420210 is an apocalyptic number.

2042420210 is a deficient number, since it is larger than the sum of its proper divisors (1633936186).

2042420210 is a wasteful number, since it uses less digits than its factorization.

2042420210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204242028.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2042420210 is about 45193.1433958737. The cubic root of 2042420210 is about 1268.7664899213.

Adding to 2042420210 its reverse (120242402), we get a palindrome (2162662612).

The spelling of 2042420210 in words is "two billion, forty-two million, four hundred twenty thousand, two hundred ten".