199029802 has 4 divisors (see below), whose sum is σ = 298544706. Its totient is φ = 99514900.

The previous prime is 199029799. The next prime is 199029811. The reversal of 199029802 is 208920991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208920991 = 491 ⋅425501.

It can be written as a sum of positive squares in only one way, i.e., 103205281 + 95824521 = 10159^2 + 9789^2 .

It is a super-2 number, since 2×199029802² = 79225724168318408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49757449 + ... + 49757452.

Almost surely, 2^199029802 is an apocalyptic number.

199029802 is a deficient number, since it is larger than the sum of its proper divisors (99514904).

199029802 is an equidigital number, since it uses as much as digits as its factorization.

199029802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99514903.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 199029802 is about 14107.7922440047. The cubic root of 199029802 is about 583.8563890481.

The spelling of 199029802 in words is "one hundred ninety-nine million, twenty-nine thousand, eight hundred two".