4390214081 has 12 divisors (see below), whose sum is σ = 5079589200. Its totient is φ = 3781043640.

The previous prime is 4390214063. The next prime is 4390214159. The reversal of 4390214081 is 1804120934.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4390214081 is a prime.

It is a super-2 number, since 2×4390214081² = 38547959354021349122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4390214041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952511 + ... + 957108.

It is an arithmetic number, because the mean of its divisors is an integer number (423299100).

Almost surely, 2^4390214081 is an apocalyptic number.

It is an amenable number.

4390214081 is a deficient number, since it is larger than the sum of its proper divisors (689375119).

4390214081 is a wasteful number, since it uses less digits than its factorization.

4390214081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909660 (or 1909649 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4390214081 is about 66258.6906073460. The cubic root of 4390214081 is about 1637.4268195332.

The spelling of 4390214081 in words is "four billion, three hundred ninety million, two hundred fourteen thousand, eighty-one".