199280672 has 12 divisors (see below), whose sum is σ = 392333886. Its totient is φ = 99640320.

The previous prime is 199280659. The next prime is 199280677. The reversal of 199280672 is 276082991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 85303696 = 10676^2 + 9236^2 .

It is not an unprimeable number, because it can be changed into a prime (199280677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113729 + ... + 3113792.

Almost surely, 2^199280672 is an apocalyptic number.

It is an amenable number.

199280672 is a deficient number, since it is larger than the sum of its proper divisors (193053214).

199280672 is an equidigital number, since it uses as much as digits as its factorization.

199280672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227531 (or 6227523 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 199280672 is about 14116.6806296665. The cubic root of 199280672 is about 584.1015961359.

The spelling of 199280672 in words is "one hundred ninety-nine million, two hundred eighty thousand, six hundred seventy-two".