4010021242 has 4 divisors (see below), whose sum is σ = 6015031866. Its totient is φ = 2005010620.

The previous prime is 4010021237. The next prime is 4010021263. The reversal of 4010021242 is 2421200104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2077627561 + 1932393681 = 45581^2 + 43959^2 .

It is a super-2 number, since 2×4010021242² = 32160540722582445128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002505309 + ... + 1002505312.

Almost surely, 2^4010021242 is an apocalyptic number.

4010021242 is a deficient number, since it is larger than the sum of its proper divisors (2005010624).

4010021242 is a wasteful number, since it uses less digits than its factorization.

4010021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005010623.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4010021242 is about 63324.7285189601. The cubic root of 4010021242 is about 1588.7255906308.

Adding to 4010021242 its reverse (2421200104), we get a palindrome (6431221346).

The spelling of 4010021242 in words is "four billion, ten million, twenty-one thousand, two hundred forty-two".