199802612 has 12 divisors (see below), whose sum is σ = 349848996. Its totient is φ = 99845760.

The previous prime is 199802599. The next prime is 199802621. The reversal of 199802612 is 216208991.

It can be written as a sum of positive squares in 2 ways, for example, as 94206436 + 105596176 = 9706^2 + 10276^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 5189 + ... + 20652.

It is an arithmetic number, because the mean of its divisors is an integer number (29154083).

Almost surely, 2^199802612 is an apocalyptic number.

It is an amenable number.

199802612 is a deficient number, since it is larger than the sum of its proper divisors (150046384).

199802612 is a wasteful number, since it uses less digits than its factorization.

199802612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27778 (or 27776 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 199802612 is about 14135.1551813201. The cubic root of 199802612 is about 584.6110956447.

The spelling of 199802612 in words is "one hundred ninety-nine million, eight hundred two thousand, six hundred twelve".