249434899 has 16 divisors (see below), whose sum is σ = 287990208. Its totient is φ = 211623552.

The previous prime is 249434891. The next prime is 249434909. The reversal of 249434899 is 998434942.

It is a happy number.

It is not a de Polignac number, because 249434899 - 2³ = 249434891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249434891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381657 + ... + 382309.

It is an arithmetic number, because the mean of its divisors is an integer number (17999388).

Almost surely, 2^249434899 is an apocalyptic number.

249434899 is a deficient number, since it is larger than the sum of its proper divisors (38555309).

249434899 is a wasteful number, since it uses less digits than its factorization.

249434899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its digits is 2239488, while the sum is 52.

The square root of 249434899 is about 15793.5081283418. The cubic root of 249434899 is about 629.4855117634.

The spelling of 249434899 in words is "two hundred forty-nine million, four hundred thirty-four thousand, eight hundred ninety-nine".