199801449 has 12 divisors (see below), whose sum is σ = 288727296. Its totient is φ = 133143192.

The previous prime is 199801429. The next prime is 199801457. The reversal of 199801449 is 944108991.

It is not a de Polignac number, because 199801449 - 2¹³ = 199793257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199801409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31504 + ... + 37310.

It is an arithmetic number, because the mean of its divisors is an integer number (24060608).

Almost surely, 2^199801449 is an apocalyptic number.

It is an amenable number.

199801449 is a deficient number, since it is larger than the sum of its proper divisors (88925847).

199801449 is a wasteful number, since it uses less digits than its factorization.

199801449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9636 (or 9633 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 199801449 is about 14135.1140426952. The cubic root of 199801449 is about 584.6099613519.

The spelling of 199801449 in words is "one hundred ninety-nine million, eight hundred one thousand, four hundred forty-nine".