4380806 has 4 divisors (see below), whose sum is σ = 6571212. Its totient is φ = 2190402.

The previous prime is 4380793. The next prime is 4380839. The reversal of 4380806 is 6080834.

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

It is a super-2 number, since 2×4380806² = 38382922419272, which contains 22 as substring.

It is an Ulam number.

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, 1095200 + ... + 1095203.

It is an arithmetic number, because the mean of its divisors is an integer number (1642803).

Almost surely, 2^4380806 is an apocalyptic number.

4380806 is a deficient number, since it is larger than the sum of its proper divisors (2190406).

4380806 is a wasteful number, since it uses less digits than its factorization.

4380806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190405.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 4380806 is about 2093.0375056362. The cubic root of 4380806 is about 163.6256332844.

The spelling of 4380806 in words is "four million, three hundred eighty thousand, eight hundred six".