4251205442 has 16 divisors (see below), whose sum is σ = 6959174400. Its totient is φ = 1931628240.

The previous prime is 4251205421. The next prime is 4251205447. The reversal of 4251205442 is 2445021524.

It is not an unprimeable number, because it can be changed into a prime (4251205447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24284 + ... + 95352.

It is an arithmetic number, because the mean of its divisors is an integer number (434948400).

Almost surely, 2^4251205442 is an apocalyptic number.

4251205442 is a deficient number, since it is larger than the sum of its proper divisors (2707968958).

4251205442 is a wasteful number, since it uses less digits than its factorization.

4251205442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73801.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4251205442 is about 65201.2687146500. The cubic root of 4251205442 is about 1619.9590298535.

Adding to 4251205442 its reverse (2445021524), we get a palindrome (6696226966).

The spelling of 4251205442 in words is "four billion, two hundred fifty-one million, two hundred five thousand, four hundred forty-two".