16226390 has 8 divisors (see below), whose sum is σ = 29207520. Its totient is φ = 6490552.

The previous prime is 16226369. The next prime is 16226393. The reversal of 16226390 is 9362261.

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

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16226393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811310 + ... + 811329.

It is an arithmetic number, because the mean of its divisors is an integer number (3650940).

Almost surely, 2^16226390 is an apocalyptic number.

16226390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16226390 is a deficient number, since it is larger than the sum of its proper divisors (12981130).

16226390 is a wasteful number, since it uses less digits than its factorization.

16226390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622646.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 16226390 is about 4028.1993495854. The cubic root of 16226390 is about 253.1671212737.

The spelling of 16226390 in words is "sixteen million, two hundred twenty-six thousand, three hundred ninety".