4235821138 has 8 divisors (see below), whose sum is σ = 6488917632. Its totient is φ = 2072848596.

The previous prime is 4235821103. The next prime is 4235821181. The reversal of 4235821138 is 8311285324.

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

It is a junction number, because it is equal to n+sod(n) for n = 4235821097 and 4235821106.

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, 22530870 + ... + 22531057.

It is an arithmetic number, because the mean of its divisors is an integer number (811114704).

Almost surely, 2^4235821138 is an apocalyptic number.

4235821138 is a deficient number, since it is larger than the sum of its proper divisors (2253096494).

4235821138 is a wasteful number, since it uses less digits than its factorization.

4235821138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45061976.

The product of its digits is 46080, while the sum is 37.

The square root of 4235821138 is about 65083.1862926209. The cubic root of 4235821138 is about 1618.0025600397.

The spelling of 4235821138 in words is "four billion, two hundred thirty-five million, eight hundred twenty-one thousand, one hundred thirty-eight".