4098688442 has 8 divisors (see below), whose sum is σ = 6162637332. Its totient is φ = 2044476000.

The previous prime is 4098688421. The next prime is 4098688459. The reversal of 4098688442 is 2448868904.

4098688442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 64021²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 4098688441 + 1 = 64021^2 + 1^2 .

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

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, 2433059 + ... + 2434742.

Almost surely, 2^4098688442 is an apocalyptic number.

4098688442 is a deficient number, since it is larger than the sum of its proper divisors (2063948890).

4098688442 is a wasteful number, since it uses less digits than its factorization.

4098688442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868224.

The product of its (nonzero) digits is 3538944, while the sum is 53.

The square root of 4098688442 is about 64021.0000078099. Note that the first 5 decimals coincide. The cubic root of 4098688442 is about 1600.3499809923.

The spelling of 4098688442 in words is "four billion, ninety-eight million, six hundred eighty-eight thousand, four hundred forty-two".