4220705438 has 4 divisors (see below), whose sum is σ = 6331058160. Its totient is φ = 2110352718.

The previous prime is 4220705389. The next prime is 4220705441. The reversal of 4220705438 is 8345070224.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 4220705398 and 4220705407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055176358 + ... + 1055176361.

It is an arithmetic number, because the mean of its divisors is an integer number (1582764540).

Almost surely, 2^4220705438 is an apocalyptic number.

4220705438 is a deficient number, since it is larger than the sum of its proper divisors (2110352722).

4220705438 is a wasteful number, since it uses less digits than its factorization.

4220705438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110352721.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 4220705438 is about 64966.9565086745. The cubic root of 4220705438 is about 1616.0756301299.

The spelling of 4220705438 in words is "four billion, two hundred twenty million, seven hundred five thousand, four hundred thirty-eight".