199464489 has 48 divisors (see below), whose sum is σ = 351636480. Its totient is φ = 106414560.

The previous prime is 199464469. The next prime is 199464511. The reversal of 199464489 is 984464991.

It is a happy number.

199464489 is a `hidden beast` number, since 19 + 94 + 64 + 489 = 666.

It is not a de Polignac number, because 199464489 - 2⁹ = 199463977 is a prime.

It is a super-2 number, since 2×199464489² = 79572164744062242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199464409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83814 + ... + 86160.

It is an arithmetic number, because the mean of its divisors is an integer number (7325760).

Almost surely, 2^199464489 is an apocalyptic number.

199464489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199464489 is a deficient number, since it is larger than the sum of its proper divisors (152171991).

199464489 is a wasteful number, since it uses less digits than its factorization.

199464489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2447 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 199464489 is about 14123.1897601073. The cubic root of 199464489 is about 584.2811332126.

The spelling of 199464489 in words is "one hundred ninety-nine million, four hundred sixty-four thousand, four hundred eighty-nine".