249143434 has 8 divisors (see below), whose sum is σ = 374057280. Its totient is φ = 124457676.

The previous prime is 249143431. The next prime is 249143441. The reversal of 249143434 is 434341942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 249143434.

It is not an unprimeable number, because it can be changed into a prime (249143431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54264 + ... + 58675.

It is an arithmetic number, because the mean of its divisors is an integer number (46757160).

Almost surely, 2^249143434 is an apocalyptic number.

249143434 is a deficient number, since it is larger than the sum of its proper divisors (124913846).

249143434 is a wasteful number, since it uses less digits than its factorization.

249143434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114044.

The product of its digits is 41472, while the sum is 34.

The square root of 249143434 is about 15784.2780639470. The cubic root of 249143434 is about 629.2402313253.

The spelling of 249143434 in words is "two hundred forty-nine million, one hundred forty-three thousand, four hundred thirty-four".