4098235681 has 4 divisors (see below), whose sum is σ = 4230436864. Its totient is φ = 3966034500.

The previous prime is 4098235667. The next prime is 4098235709. The reversal of 4098235681 is 1865328904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4098235681 - 2⁷ = 4098235553 is a prime.

It is a super-2 number, since 2×4098235681² = 33591071394043067522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4098235081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66100545 + ... + 66100606.

It is an arithmetic number, because the mean of its divisors is an integer number (1057609216).

Almost surely, 2^4098235681 is an apocalyptic number.

4098235681 is the 36961-st hex number.

It is an amenable number.

4098235681 is a deficient number, since it is larger than the sum of its proper divisors (132201183).

4098235681 is a wasteful number, since it uses less digits than its factorization.

4098235681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132201182.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 4098235681 is about 64017.4638751021. The cubic root of 4098235681 is about 1600.2910513494.

The spelling of 4098235681 in words is "four billion, ninety-eight million, two hundred thirty-five thousand, six hundred eighty-one".