4390266 has 8 divisors (see below), whose sum is σ = 8780544. Its totient is φ = 1463420.

The previous prime is 4390247. The next prime is 4390279. The reversal of 4390266 is 6620934.

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

4390266 is an admirable number.

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, 365850 + ... + 365861.

It is an arithmetic number, because the mean of its divisors is an integer number (1097568).

Almost surely, 2^4390266 is an apocalyptic number.

4390266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4390266 is a wasteful number, since it uses less digits than its factorization.

4390266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731716.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 4390266 is about 2095.2961604508. The cubic root of 4390266 is about 163.7433274285.

It can be divided in two parts, 4390 and 266, that added together give a triangular number (4656 = T₉₆).

The spelling of 4390266 in words is "four million, three hundred ninety thousand, two hundred sixty-six".