4102020242 has 4 divisors (see below), whose sum is σ = 6153030366. Its totient is φ = 2051010120.

The previous prime is 4102020229. The next prime is 4102020301. The reversal of 4102020242 is 2420202014.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2420202014 = 2 ⋅1210101007.

It can be written as a sum of positive squares in only one way, i.e., 3937437001 + 164583241 = 62749^2 + 12829^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4102020242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025505059 + ... + 1025505062.

Almost surely, 2^4102020242 is an apocalyptic number.

4102020242 is a deficient number, since it is larger than the sum of its proper divisors (2051010124).

4102020242 is a wasteful number, since it uses less digits than its factorization.

4102020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051010123.

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

The square root of 4102020242 is about 64047.0158711552. The cubic root of 4102020242 is about 1600.7835019424.

Adding to 4102020242 its reverse (2420202014), we get a palindrome (6522222256).

The spelling of 4102020242 in words is "four billion, one hundred two million, twenty thousand, two hundred forty-two".