199420736 has 28 divisors (see below), whose sum is σ = 397759428. Its totient is φ = 99197952.

The previous prime is 199420723. The next prime is 199420747. The reversal of 199420736 is 637024991.

199420736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 188238400 + 11182336 = 13720^2 + 3344^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 199420693 and 199420702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4700 + ... + 20516.

Almost surely, 2^199420736 is an apocalyptic number.

199420736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

199420736 is a deficient number, since it is larger than the sum of its proper divisors (198338692).

199420736 is a wasteful number, since it uses less digits than its factorization.

199420736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026 (or 16016 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 199420736 is about 14121.6406978793. The cubic root of 199420736 is about 584.2384089464.

The spelling of 199420736 in words is "one hundred ninety-nine million, four hundred twenty thousand, seven hundred thirty-six".