15968228 has 6 divisors (see below), whose sum is σ = 27944406. Its totient is φ = 7984112.

The previous prime is 15968213. The next prime is 15968231. The reversal of 15968228 is 82286951.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 2849344 = 3622^2 + 1688^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996025 + ... + 1996032.

It is an arithmetic number, because the mean of its divisors is an integer number (4657401).

Almost surely, 2^15968228 is an apocalyptic number.

It is an amenable number.

15968228 is a deficient number, since it is larger than the sum of its proper divisors (11976178).

15968228 is a wasteful number, since it uses less digits than its factorization.

15968228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992061 (or 3992059 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 15968228 is about 3996.0265264385. The cubic root of 15968228 is about 251.8173069059.

The spelling of 15968228 in words is "fifteen million, nine hundred sixty-eight thousand, two hundred twenty-eight".