4378601242 has 4 divisors (see below), whose sum is σ = 6567901866. Its totient is φ = 2189300620.

The previous prime is 4378601239. The next prime is 4378601261. The reversal of 4378601242 is 2421068734.

It is a Cunningham number, because it is equal to 66171²+1.

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., 4378601241 + 1 = 66171^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094650309 + ... + 1094650312.

Almost surely, 2^4378601242 is an apocalyptic number.

4378601242 is a deficient number, since it is larger than the sum of its proper divisors (2189300624).

4378601242 is a wasteful number, since it uses less digits than its factorization.

4378601242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189300623.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 4378601242 is about 66171.0000075562. Note that the first 5 decimals coincide. The cubic root of 4378601242 is about 1635.9817901680.

Adding to 4378601242 its reverse (2421068734), we get a palindrome (6799669976).

The spelling of 4378601242 in words is "four billion, three hundred seventy-eight million, six hundred one thousand, two hundred forty-two".