16742224 has 10 divisors (see below), whose sum is σ = 32438090. Its totient is φ = 8371104.

The previous prime is 16742203. The next prime is 16742237. The reversal of 16742224 is 42224761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16548624 + 193600 = 4068^2 + 440^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16742192 and 16742201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523179 + ... + 523210.

It is an arithmetic number, because the mean of its divisors is an integer number (3243809).

Almost surely, 2^16742224 is an apocalyptic number.

It is an amenable number.

16742224 is a deficient number, since it is larger than the sum of its proper divisors (15695866).

16742224 is a wasteful number, since it uses less digits than its factorization.

16742224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046397 (or 1046391 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 16742224 is about 4091.7262860558. The cubic root of 16742224 is about 255.8218976051.

Adding to 16742224 its reverse (42224761), we get a palindrome (58966985).

The spelling of 16742224 in words is "sixteen million, seven hundred forty-two thousand, two hundred twenty-four".