16213244 has 6 divisors (see below), whose sum is σ = 28373184. Its totient is φ = 8106620.

The previous prime is 16213207. The next prime is 16213247. The reversal of 16213244 is 44231261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026652 + ... + 2026659.

It is an arithmetic number, because the mean of its divisors is an integer number (4728864).

Almost surely, 2^16213244 is an apocalyptic number.

It is an amenable number.

16213244 is a deficient number, since it is larger than the sum of its proper divisors (12159940).

16213244 is a wasteful number, since it uses less digits than its factorization.

16213244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053315 (or 4053313 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 16213244 is about 4026.5672725040. The cubic root of 16213244 is about 253.0987340322.

The spelling of 16213244 in words is "sixteen million, two hundred thirteen thousand, two hundred forty-four".