16223956 has 12 divisors (see below), whose sum is σ = 32447968. Its totient is φ = 6953112.

The previous prime is 16223953. The next prime is 16223959. The reversal of 16223956 is 65932261.

It is an interprime number because it is at equal distance from previous prime (16223953) and next prime (16223959).

16223956 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223953) 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, 289686 + ... + 289741.

Almost surely, 2^16223956 is an apocalyptic number.

It is an amenable number.

16223956 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.

16223956 is a wasteful number, since it uses less digits than its factorization.

16223956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579438 (or 579436 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 16223956 is about 4027.8972181524. The cubic root of 16223956 is about 253.1544620688.

The spelling of 16223956 in words is "sixteen million, two hundred twenty-three thousand, nine hundred fifty-six".