16224949 has 8 divisors (see below), whose sum is σ = 18075960. Its totient is φ = 14460096.

The previous prime is 16224947. The next prime is 16224973. The reversal of 16224949 is 94942261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 280900 + 15944049 = 530^2 + 3993^2 .

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

It is not a de Polignac number, because 16224949 - 2¹ = 16224947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16224947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21142 + ... + 21895.

It is an arithmetic number, because the mean of its divisors is an integer number (2259495).

Almost surely, 2^16224949 is an apocalyptic number.

It is an amenable number.

16224949 is a deficient number, since it is larger than the sum of its proper divisors (1851011).

16224949 is a wasteful number, since it uses less digits than its factorization.

16224949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43079.

The product of its digits is 31104, while the sum is 37.

The square root of 16224949 is about 4028.0204815765. The cubic root of 16224949 is about 253.1596268028.

The spelling of 16224949 in words is "sixteen million, two hundred twenty-four thousand, nine hundred forty-nine".